WATCHER (Watchyeo / 왓쳐)

Apply this under your nose.

What's this?

It's because of the smell.

We have six bodies in total.

By the look of their builds, they were all adult males...

and they were all buried at different times.

They say it must have been used as a burial...

for at least 15 years.

They were buried stripped and wrapped in plastic?

That's the most recently buried one.

The others are hard to even identify.

How did you find them?

Mr. Do told me to investigate the area.

Wait.

Could you shine the light?

Give me the tweezers.

A little downward.

Find out what this is.

Ms. Jo.

Head over to the National Forensic Service next morning...

to check the autopsy results...

and request them to identify the bodies.

Mr. Do has sharp eyes.

He used to be the ace of the Investigation Team.

By the way, let's get something to eat.

I get so hungry in the middle of working these days.

You're hungry too, aren't you? Let's go.

I am a bit peckish, but... Are you really going to eat?

Baek Sung Cheol of Gem Trade.

He would have been reported missing.

He seems like a thug, so ask around.

Yes, ma'am.

All right.

Baek Sung Cheol has records of committing four crimes.

He's a thug who deals with corporate bonds,

real estate, and offshore gambling.

He disappeared last year when the police started investigating.

He looks similar,

but I'm can't be exactly sure.

I contacted Baek Sung Cheol's younger sister.

She's on her way to the National Forensic Service,

so we'll be able to identify the body by the end of today.

Yes, sir.

Why did you tell them to dig up that place?

Ms. Jo said it was your order.

Park Si Young said something suspicious.

He said it was a quiet and desolate place.

A place where no one would know even if someone died.

The investigation team concluded that he fled abroad...

and decided to close the case until they get a hold of him.

They even have a tailing report.

He didn't go to work the day before he went missing...

and the last thing he did was to visit a prison.

Let's go.

Where?

We have to find out what they talked about.

He was the last one to see Baek Sung Cheol.

When was Oh Sang Do imprisoned?

Last November.

And Baek Sung Cheol visited Kim Jae Myung in December.

I guess he called for me after Baek Sung Cheol went missing.

He won't speak up if I'm with you.

I heard you were put in danger because of Oh Sang Do.

Are you all right?

Whatever.

We found some people buried there.

An expert buried people from way back to recently.

It's been used as a burial ground for about 15 years.

How many bodies were there?

We found six.

Including a thug named Baek Sung Cheol.

You know him, right? I heard he came to see you.

The day before he went missing...

and about two weeks before he went missing.

What did you talk to him?

I've known him since we were in the same gang a long time ago.

He only came to say hello.

You called a gangster in when Oh Sang Do got imprisoned,

and you called me in to spew nonsense about a bribery ledger...

when that gangster went missing.

What in the world are you up to?

I wanted to get out of here.

He wanted to apply for parole in exchange for that ledger.

He tried to get in contact with his boss through Baek Sung Cheol,

but he went missing.

Sir, have you identified the body of the guy...

who had a name card in his throat?

Yes, he's Baek Sung Cheol.

His sister just came in to confirm.

He was killed right after he went missing.

What was the cause?

Suffocation.

They wrapped his head with plastic and suffocated him.

The other bodies aren't in good condition, so it's hard to judge,

but seeing that they were also stripped and wrapped in plastic,

they were most likely killed in the same way.

This one's the only one done poorly.

The plastic isn't wrapped properly...

and he's still wearing clothes.

Yes. That's also the only one that had unscathed fingers.

Just that one body.

It's almost a perfect crime.

His skills grew better.

Probably. - All right thumbs, right?

Were they cut when they were alive or after they were killed?

When they were alive.

With a sharp metal, in one blow.

Do you think it was done by the same person?

Probably.

They were all killed in the same way.

Unless someone passed on the method.

But that's unlikely.

But...

he's definitely a weird one.

How weird?

He knows how to restrain himself.

Unlike most serial killers, he killed once every few years.

Once a killer commits murder,

the period tends to shorten.

They can't hold back from the stimulation.

It can be once every few months at first,

then it becomes once every few weeks, then every other day.

He must be committing murder with a purpose.

Could it be for money?

Or honor?

For a belief, relationship, or whatever.

When a person becomes extreme,

they need something to hold on to.

What is it?

I didn't ask why he had a name card in his throat.

That was the reason we were able to identify him so quickly.

He swallowed it himself.

The culprit will get caught only when his identity is confirmed.

I would have done the same.

It won't be over just because I'm dead.

There she is.

Good job, Mr. Do.

Everyone knows about it, so we'll have to investigate properly.

I'll take care of it, ma'am.

This isn't a corruption case.

What's up with her?

She's going to close the case by putting up a plausible suspect.

Like who?

Park Si Young.

Last night, we found six bodies...

buried in Sungil Eco Park.

They were all adult male bodies, and it seems to have been used...

as a burial ground for more than 15 years.

We are focusing on having the bodies identified,

and the whole team is trying to identify those who went missing.

We have created a special team with Mr. Jang's team members,

who are known to have the top detection rate in the country.

Mr. Jang?

Could you give us more details about the conditions of the bodies?

The bodies were all wrapped in plastic...

Look at him showing up now that the case is more serious.

There's a reason for his success.

Now the National Forensic Service is working on...

Where's Mr. Do?

He went back to the office.

They're working on identifying each body...

Tell him not to even think about getting involved with this case.

You too. Let's not make it complicated.

The bodies seem to have been buried at different times.

Will Kim Jae Myung be released on parole?

Probably.

What was on the ledger to make you so worried?

The thug who discussed the ledger with Kim Jae Myung is also dead.

Is your name on that thing?

You shouldn't be calling him that!

Ask your father.

It's been more than 15 years. Why don't you make up with him?

I, Yeom Dong Sook, promise to arrest the culprit...

for the honor of Seyang Police Station.

It doesn't matter if it's the slightest bit of information.

If anyone has anything to report regarding the case,

please call up the Special Investigation Team...

or me, directly.

I guess she's confident enough to be handling the case herself.

Or she found someone who could be used as a suspect.

What do you mean?

They're going to be investigating with Park Si Young as the suspect.

The time Park Si Young became an officer...

matches up with the time the first body was buried.

They've been keeping an eye on the prison,

so they must know that Baek Sung Cheol visited him.

And Park Si Young was the one who told us where the bodies were,

so he's fit as a suspect.

Yes.

But he's not the culprit.

He had scars from having his thumb stitched up.

I think his thumb must have been cut at the ecology park.

That's why he knew about that place.

Didn't he mention that?

He did say something similar.

Does that mean an officer was attacked by the murderer?

The culprit even threatened a prosecutor.

Do you think the culprit of this case...

is the one you've been looking for?