(Train)
(This drama is fictitious and names, places, organizations, incidents,)
(entities and jobs are unrelated to real life.)
We're here at Mukyeong Station, where a skeleton was found.
So far, they've found a total of four...
But while arresting the suspect,
the police found a corpse of the fifth victim.
The killer strangled the victim to death,
then bashed in the head.
Not just a few times,
but enough to cause comminuted fractures in a wide area.
There was a case with a similar MO.
The Mukyeong Residential Murder.
Could the killer be the same person?
All of my mother's jewellery disappeared 12 years ago.
The victims of the Mukyeong Station Case were wearing them.
All five of them.
It was me. It was me who killed.
He was on that train, right?
Didn't he abandon the bodies there?
Have you heard of a ghost train?
"A mysterious train showed up..."
"on empty tracks in the dark out of the blue."
(Previously)
Seo Kyung.
Same date, same city.
But everything is slightly different from before.
A live person is dead. A dead person is alive.
And in this world,
there's another me.
My name is Seo Do Won.
Let's start over from there.
No. This can't be our beginning.
The Mukyeong Residential Murder Case that occurred 12 years ago.
You're the murderer's son, and I'm the victim's daughter.
That was our beginning.
(April 8, 2008)
Hello?
Yes, my father's a service engineer.
He left his phone?
Yes.
I'll come get it. What is your address?
Yes. Okay, I got it.
I'm sorry.
Thank you.
The forked road envelops two worlds.
That day,
our two different choices...
changed our fate.
I'm the service engineer from earlier.
It looks like I left my phone here.
(Kyeongmu-dong 528-2, Songin-Gu, Mukyeong City)
528-2.
528-2. 528-2.
Sir.
Why are you lying down?
Sir. Sir.
You can't sleep here.
Wow. This is...
Darn it.
Father?
Hey.
- Do Won. - Dad.
(Han Seo Kyung)
(Kyeongmu-dong Hill)
Do Won!
I can't let this slide for your sake anymore.
He's causing trouble every single day.
I'm sorry. I'm really sorry.
- Give me that. I'll clean it. - Gosh. Forget it.
Just go and look for your father.
He's completely wasted. Who knows if he's causing trouble again?
- I'm sorry. - Go!
Father!
Father.
(Police Station)
Father!
- Do you think he's dead? - He's badly hurt.
Excuse me.
What happened?
Father.
Father!
Father.
Can someone call 911? Please hurry.
Father.
Father. Hang in there. Dad.
Once I pass the test, I'll pay you back tenfold...
No, a hundredfold for all that you've done for me.
Seo Kyung.
(Mukyeong Station)
Who are you?
Do Won.
(Train)
Is it really you, Father?
I've gotten old, right?
Weren't you in an accident?
What?
"Accident"? What accident?
Gosh, this is nothing. I just got hurt while working.
I was in prison for 10 years.
The only type of job I can get is manual labour.
But I should be grateful that I'm healthy.
I saw your news on TV and in the newspapers.
Well, I know that it can't be true.
But I was still worried. So, I'm here.
What they said isn't true, right?
Okay. Right.
I can see that you're doing well. That's all I want.
I had no business coming here.
I apologize for barging in here like this.
You won't ever have to see me again.
What happened 12 years ago?
What happened?
I already paid for my crime. What else do you want from me?
I know it wasn't you.
I know you didn't do it.
I had no idea.
Do you know...
For all this time, do you know how much I...
Tell me.
Tell me what happened.
Why were you framed for the crime?
How did you become the culprit?
- Father. - I don't remember.
I don't remember anything.
Some days, I feel wronged.
Some days, I even question whether I really did...
get wasted and kill a man, just like people say.
And...
every day,
I felt sorry to you.
That I was your father.
Pretend that you don't have a father.
Pretend I don't exist or that I'm a stranger.
I did live in a world like that.
I resented you for dying.
I told you that you had no right to die...
and that you should never rest in peace.
I lived my whole life, resenting you.
So I...
Let's talk again...
in the morning.
(Mukyeong Residential Murder)
("The Suspect of Mukyeong Residential Murder, Seo, Arrested")
Father.
Father. Father!
Father.
Hey, how many times must I tell you?
I told you that men must keep their shoes clean...
if they want to avoid walking on the bumpy roads.
My gosh, thanks to you,
I'll only walk on a smooth path.
What? You brat.
- I'm going to school. - Okay.
(Mukyeong Police Station)
So Seo Jae Chul isn't on the list, right?
Okay.
(Taesan Office)
This is Seo Do Won of Serious Crime Team Three.
Are you at work?
Ms. Oh?
I'd like to talk.
Can you come to my office?
(Office of the Director of Detective Division)
Even if you catch the culprit...
Even if you kill that culprit,
Seo Kyung will never come back.
Come in.
I called you several times after I heard you got released.
But you didn't pick up.
I lost my cell phone.
I got a new one yesterday.
I bet you were inconvenienced because of me.
- I'm sorry. - I waited...
for you to call.
While you were busy being chased as a culprit,
I hoped you might reach out to me.
I waited, hoping you might...
ask me for help...
just like how you did in the past.
I'm relieved that things seemed to have ended well.
No, this is just the beginning.
So right now, I need your help...
more than ever.
The murder case that happened 12 years ago.
The Mukyeong Residential Murder Case.
Are we back to that again?
Are you going to say your father got framed...
and that the culprit is someone else?
I guess my other self was suspicious of the same thing.
Do you remember the jewellery that went missing from the scene?
The culprit was the one who took them that night.
I saw them with my own two eyes.
I'm not blaming you for anything.
Even if I were you,
I would've thought of my dad as the murderer.
All the evidence was pointing to him.
Even I thought he was guilty.
But...
the murder that occurred 12 years ago didn't end there.
Are you going to say...
it was the beginning of a serial murder again?
That's what you always told me every time someone got murdered...
with a similar MO.
"My dad might not be the culprit."
"He didn't have the jewellery."
"The culprit is someone else."
Do you remember?
I always replied with the same answer.
"So, Do Won."
"Do you have evidence to prove your statement?"
I know you're not happy with me.
After all, I was the one who arrested your father.
But Do Won, how long are you going to be like this?
How much longer do I need to see you...
ruin your life like this?
So, Do Won.
Do you have evidence to prove your statement?
(Director of Detective Division, Oh Mi Sook)
You met your father?
But he left very quickly.
I need to find him, Ms. Oh.
Hey, it's me. Have you been well?
I have a favour to ask.
Can you help me find someone?
Why isn't anything happening?
Rain?
The same train operated every time it rained?
Yes.
The train arrived at 9:35pm.
It was the last train to Mukyeong Station.
But this train...
- Go! - My gosh!
Rain. 9:35pm.
And...
Then is this train never going to run again?
We haven't decided whether to scrap it or not.
But the train is too old.
And the last time it ran, there was almost a big accident.
This door was open that day. Someone must've opened it manually.
That's not the end of it.
When we arrived at the station, I don't know how,
but the other door was open too.
Thank goodness no one got hurt.
Imagine what would've happened if someone did.
This is Seo Do Won from Mukyeong Police Station.
I need to ask you something.
What were you doing on the train the day you guys arrested me?
Someone called from Ilsung Station and gave us a tip-off...
saying he saw you getting on a train headed for Mukyeong Station.
You saw me on that train that day?
Don't you remember?
You jumped out of the bathroom.
That's why we went after you.
My other self...
was also on the train that day?
We both ended up...
in different worlds.
The labourers need to be protected...
and receive better treatment.
Next, we have news regarding...
the Mukyeong Station Serial Murder Case.
The sixth victim was found over a week ago...
at Mukyeong Station which has been closed for five years.
- What's this? - However, the victim's identity...
- still remains a mystery... - Why is Mukyeong Station...
which is slowing down the investigation.
Are you okay?
Jung Min?
Do you know how long you've been unconscious?
What happened? How did you end up unconscious at Mukyeong Station?
Hey...
What's with that news?
Why is it saying Mukyeong Station has been closed?
And what's this about serial murders?
Do Won.
Are you okay?
Someone was here until not long ago.
All of us...
live many lives simultaneously.
Who are you?
Then who are you?
You crossed over...
the boundary.
It's you. You killed Seo Kyung.
All of us...
live many lives simultaneously.
Who are you?
Then who are you?
You crossed over...
the boundary.
It's you. You killed Seo Kyung.
It was you. It was all your doing.
12 years ago,
and the bodies found here.
I wonder.
How will you prove that?
The train is damaged, and the passageway is closed.
Have you felt the pain of...
spewing blood as your guts are being twisted and cut?
Live in silence.
Unless you want to lose something else you value.
We're off to eat dinner. Would you like to join us?
No, I'm fine.
Do whatever you want today.
You haven't officially transferred yet.
Don't mind me from now on.
You don't have to host a welcome dinner either.
I won't attend anyway.
Okay.
I was pleased we got reinforcements.
The transfer was Inspector Han Seo Kyung?
Do you know her?
I told you that...
a sociopath from my year worked at Ilsung Police Station.
(Hyeongje Employment Agency, Mirae Office, Saemaeul Association)
(Detective Lee Hyung Min, Ilsung Police)
Hello?
Didn't you go to Mukyeong Police Station?
Yes. Why?
Senior Inspector Seo was here looking for you.
It looked really urgent. Is something wrong?
Senior Inspector Seo?
We meet again.
You heard about the transfer, right?
I'll be working with this team now.
Live in silence.
Unless you want to lose something else you value.
I thought you'd be pleased.
I hear that even with reinforcements,
this team is left with two remaining members in the end.
You're quite notorious.
What are you doing?
Think that I'm crazy, that I'm out of my mind.
That I'm mad.
The murderer's son and the victim's daughter.
You said that's our beginning.
Wait for me.
I will prove that...
that is wrong.
A living room with blood everywhere.
The feeling of cold blood.
My dad's wide-open eyes.
But the number I dialled...
was for an ambulance, not the police.
I still remember...
what I said.
"My dad is dead. Please save him."
But even in court, that person...
said the same thing.
"I do not remember anything."
When I...
cannot forget anything.
If anyone wanted to forget that memory,
it would be me.
It has been a while...
since you brought up that day.
Is there a reason that memory returned to you?
The person was recently released from prison.
I bet that now he sleeps in comfort,
eats good food,
laughs while watching TV and gets on with his life.
Because...
he's alive.
He'll think that he lived and paid the price for what he did.
But doctor.
Who do you think...
he paid the price to?
I'm the victim...
and I haven't forgiven him yet.
You don't have to spare me your lunchtime now.
Mukyeong Police Station is nearby,
and I can free up my schedule more easily.
Why did you suddenly switch stations?
Is something wrong?
Rather than switch stations,
I switched the people I work with.
To keep an eye on someone.
So, Do Won.
Do you have evidence to prove your statement?
(Second victim)
(Third victim)
(Fourth victim, skeleton, unidentified)
How will you prove that?
The train is damaged,
and the passageway is closed.
(Fifth victim, Lee Ji Young)
We detected a certain type of dye that's used to...
make car seats on her fingers.
We're trying to identify who she is by checking the relevant factories.
Among the victims found in the other world,
I only identified one victim.
No one under that name has been reported missing.
Her name is Lee Ji Young. Can you check it again?
She's 26.
We also checked the list outside our district.
But she's not on any list for missing persons.
We didn't find her name at all.
My gosh. I guess you have all the time in the world.
Instead of wasting your time here looking for a fake missing person,
you should focus on your assigned cases.
Your team got a missing person's case...
which became a serious crime case.
A missing person's case?
I wasn't informed of that.
Gosh, what's wrong with you?
Your team never informed you when they work on a new case.
Inspector Han, we're dispatched to handle a missing person's case.
Please come to the scene.
You came to work.
When I was working at a patrol division,
I went through all sorts of things.
I've been stabbed by a broken piece of a liquor bottle.
And I've been hit by a car while running a checkpoint.
That's how I will treat what you did to me the other day.
A rampage by a drunk civilian.
An accident caused by a drunk driver.
I don't know why you hugged me like that,
but this is the last time I'll let your mistakes slide.
I hope that's the last time...
I feel uncomfortable because of your behaviour.
We aren't exactly friends.
We have a missing person.
That doesn't make me uncomfortable.
I'm happy that you're here.
He even signed up for the same classes as me.
I understand he might take the same classes for electives,
but he's a business major.
Why would he take classes for law majors?
Here. If you skip breakfast, you won't be able to focus.
Breakfast isn't important right now.
Here. Drink some water too.
Okay.
See? He asked me out to dinner again.
He's totally stalking me.
How is inviting you for a meal stalking?
He calls and texts me all the time.
You don't think this is stalking?
Block his number.
That's why I lied to him that I have a boyfriend.
- But you don't. - I just lied to him.
Since this happened,
you can pretend to be my boyfriend.
You want me to lie?
You're asking a police officer to lie?
Pull over. I'll walk.
- What? - Stop the car.
Okay. Hold on.
Seo Kyung, didn't you get my text?
I texted you.
I didn't get it.
If you're free tonight, do you want to have dinner?
It's my treat.
Seo Kyung, come home early.
I'll cook your favourite for dinner.
Okay.
Bye, Do Won.
He's my boyfriend.
Why did you become a cop?
To make money.
What about you? Why did you become a cop?
To make money for someone.
That's how I managed to keep myself alive.
She was like my younger sister...
and my only family.
And she was the woman I loved.
I guess it wasn't a happy ending.
You talked about her in the past tense.
It's not over yet.
As long as she's alive in whatever form,
that will be enough for me.
Lee Jin Sung who died was a witness.
A witness of the serial murder.
Let's talk after I find evidence that proves this.
It's something you should know too.
A woman in her 50s named Jung Kyung Hee went missing.
She lived alone. And she has a married daughter.
But she couldn't report it sooner because she was abroad then.
Where was she last seen?
14 days ago, she was last seen getting off a bus from her work.
Ever since then, there were no confirmed signs of activity.
It's been too long since the critical time passed.
Are you telling me something happened to my mother?
Excuse me. Could you come over here?
Inspector Han, her family already feels guilty.
She blames herself for not reporting it sooner.
I want you to be careful with your words.
Detective Oh, have you ever found someone who went missing days ago...
to be alive and well after you failed to find...
any signs of activity?
Let's make our goal clear.
It looks like our goal should be...
finding the body and the culprit as soon as possible...
instead of giving false hope to the bereaved family.
Didn't I tell you?
She's a sociopath.
Detective Oh, when you get a new case, report to me first.
What?
What's up with Mr. Seo?
He has never given you an instruction while investigating.
One of them has an anger issue. And the other is a sociopath.
This isn't a serious crime team. They are a pair of villains.
Be quiet.
- Detective Kang. - Yes.
Has this ever happened before?
My mom isn't the type to leave without cleaning the house.
On top of that, she didn't even tell me.
Did you check the surveillance cameras from the station?
There weren't any cameras on the way to this house.
The bus stop is 10 minutes away on foot.
Is it true that it's likely my mom is dead?
Well, you know...
To be honest with you, things don't look great.
However, judging the possibility of her survival is above us.
We will consider every possibility...
The sixth victim.
Is it true that it's likely my mom is dead?
Well, you know...
To be honest with you, things don't look great.
However, judging the possibility of her survival is above us.
We will consider every possibility...
The sixth victim.
We're guessing the sixth victim was in her 50s.
We detected a certain type of dye that's used to...
make car seats on her fingers.
Did your mother work at a factory?
- Yes. - The factory she worked at...
supplied parts to an automobile company.
She worked hard to make a living all her life,
so she had lost all her fingerprints.
What's this?
It's an annex. They've been renting the place out.
It was after the daughter got married.
So it's probably been about a year.
There was a fight?
Mr. Seo!
What is it?
Here.
(I promise to pay back the 5,000 dollars I borrowed...)
Do you know this person?
It's the tenant living in the annex.
If he lived in the annex,
he must've noticed that your mother was gone.
Why didn't he make a report?
I asked him, and he told me that he thought...
she went on a trip or something.
Where is this guy?
Sun Mi's mother...
was going through a really tough time because of him.
She kept asking him to move out, but he wouldn't listen.
I bet she was really frustrated.
Not a single day passed by peacefully.
Yes, she's right. I heard she even lent him money.
You can't just stay here without paying rent.
Get out. Move out of here.
My gosh, let me go!
Darn it! I'm going to kill you!
I thought they got along fine when he first moved there.
Did they fall apart because he didn't pay her back?
The thing is, I told her what I found out about him.
That young man is an ex-convict.
He moved in there without telling her that.
She couldn't even sleep...
or leave the house at ease.
And every time he got drunk, he kept saying he'll kill someone.
There was no way she could let him live there...
when she was living all by herself.
He was horrible.
I wonder what happened to her.
Do you have anything?
- Are you going somewhere? - Yes.
We're on our way to meet the tenant.
We're finally after the same person.
The tenant is an ex-convict.
He borrowed money from the victim,
and that caused them to fight pretty often recently.
Let's not call her a victim yet. She's just missing for now.
No, she's a victim.
Jung Kyung Hee is dead.
If she's really dead,
shouldn't we look for her body first?
We can't find her body.
If the tenant really turns out to be the culprit,
we'll have to prove that he's guilty without the body.
Inspector Han, I want you and Detective Kang...
to find out more about the tenant.
Yes, sir.
My goodness.
What do you mean Jung Kyung Hee is dead?
It means she's dead.
If you're talking about the possibility of her death,
there's no proof of that yet.
I'm saying it's meaningless to talk about...
whether she might still be alive or not.
Could he...
really be the culprit?
All of us live many lives simultaneously.
You crossed over...
the boundary.
(Photos of the scene)
(6th victim)
(No jewellery stolen from Mukyeong Residential Murder found on victim)
You punk. How dare you stab me in the back?
A body.
A woman's body was in the bag.
This fell out of it.
Hey, what are you doing standing up?
- I'm okay now. - No, you're not.
You hurt your head.
Seo Do Won, team leader of Serious Crime Team Three...
at Mukyeong Police Station.
Started out as an officer and is now an inspector.
He was found unconscious while investigating...
the abandoned bodies that were found in Mukyeong Station...
which has been closed for years.
Right. I guess you're okay now.
You kept saying Lee Jin Sung is dead when he's well and alive.
Then you kept wanting to meet your late father.
Do you know how startled I was?
Now, tell me what happened.
Why were you unconscious on the railroad that day?
Will you believe me if I tell you?
You're not going to tell me that you fell...
from a moving train again, are you?
But you see,
there really is a world...
where this all began.
(Ilsuk Landscaping)
Excuse me.
(Ilsuk Landscaping)
We're from the police.
"The police"?
When is he coming back?
Well, he should be here by now.
Let me call him.
No, we'll wait here.
(Ilsuk Landscaping)
Ms. Han.
Do you think this is why Mr. Seo said...
that we won't find the body?
(Kitchen Department Store, Mukyeong Kitchen)
It's a website that sells secondhand kitchen appliances.
I searched the website and there was only one item that cost this much.
My gosh.
I think he left the area.
This is Han Seo Kyung.
Did you meet Kim Jin Woo?
We lost him right before our eyes. We're looking for him.
The day the victim disappeared, Kim Jin Woo bought...
a meat cutting machine.
What?
A meat cutting machine.
The machine that butchers use to cut meat.
Kim Jin Woo might be a lot more brutal...
than we imagined.
I'll go back to the police station to get a warrant.
(Ilsuk Landscaping)
Tell me more in detail. Are you sure about this?
Detective Kang checked his credit card statement.
Inspector Han.
I think Kim Jin Woo is back.
Are you at Jung Kyung Hee's house?
Is Detective Kang with you? Inspector Han.
(Han Seo Kyung)
(Kang Joon Young)
Where are you right now?
My gosh. He's on his way to the police station.
Are you kidding me?
Gosh, hang up now.
- Are you crazy? - Kim Jin Woo set the fire.
To destroy evidence.
That is where he killed Jung Kyung Hee.
Inspector Han. Inspector Han!
Stop. That's an order.
It wasn't my father.
A body. A woman's body was in the bag.
This fell out of it.
The real killer is there.
I must go back.
He left his truck, so he can't have gone far.
Let's split up and search.
- I'll go this way. - Okay.
That punk.
You jerk!
What are you doing?
Jin Woo.
(Train)
That criminal is a detective?
The Jin Woo here is the killer?
I'm working a case.
A serial murder. A series of missing people.
People have disappeared,
but you don't know who disappeared where and how?
Faking a killer is such a small deal that you don't even remember?
Don't get so nosy and cross the line.
What ripple effect did my absence cause?
What he tried to hide by setting a fire.
His target. Kim Jin Woo's target.