

Stranger
Hwang Shi Mok underwent brain surgery as a child to curb his violent temper, which left him devoid of emotions. Hwang becomes a prosecutor known for his piercing intelligence and logic, but he is ostracized because he lacks empathy and social skills. He is also one of only a handful of upright prosecutors who have refused to take bribes. One day, he encounters a stabbing victim while investigating corruption. He meets Lieutenant Han Yeo Jin at the crime scene. They join forces to root out corruption at the prosecutors’ office and solve a serial murder case.
Cast

Cho Seung-woo
Hwang Si-mok

Bae Doona
Han Yeo-jin

Lee Jun-hyuk
Seo Dong-jae

Jeon Hye-jin
Choi Bit

Choi Mu-sung
Woo Tae-ha

Yoon Se-a
Lee Yeon-jae

Park Seong-geun
Kang Won-chul

Jeon Bae-soo
Choi Yun-soo

Choi Jae-woong
Jang Geon

Lee Hae-yeong
Shin Jae-yong

Song Ji-ho
Park Sun-chang

Kim Young-jae
Kim Sa-hyun

Kim Hak-seon
Oh Ju-seon

Jung Sung-il
Managing Director Park

Yoon Tae-in
Seo Sang-won
Seasons
An unlikely partnership is forged, between a passionate cop and an emotionless prosecutor, to bring an evasive serial killer to justice.

E1I Am Innocent
Jun 10, 2017
As a teen, prosecutor Hwang Si-mok received surgical treatment for his abnormally developed brain, but the procedure left behind serious side effects.

E2Just Turn On The Lights
Jun 11, 2017
The convict's strong plea for his innocence prompts Si-mok to review the CCTV clip. At the Yongsan police station, he runs into officer Han Yeo-jin.

E3A New Possible Suspect
Jun 17, 2017
Si-mok volunteers to appear on live national TV to discuss Kang Jin-seob. He also makes a bold promise to find the culprit within two months.

E4Kwon Min Ah
Jun 18, 2017
Rumors quickly spread about Si-mok's violent nature. Regardless, he persists in his investigation. He finds his mentee, Young Eun-su, suspicious.

E5The Second Huam-dong Case
Jun 24, 2017
Si-mok, puzzled by the details of the most recent murder case, visits the victim's home to seek more clues. Yeo-jin joins him in the investigation.

E6The Ringtone
Jun 25, 2017
New pieces of evidence only increase the list of possible suspects. In the midst of the confusion, a few begin to question Si-mok's innocence.

E7Ga Young's Phone
Jul 1, 2017
Si-mok and Yeo-jin team up to covertly pursue Seo Dong-jae. Just as Dong-jae is about to throw something into the Han River, Yeo-jin stops him.

E8Western Seoul Prosecutors' Office
Jul 2, 2017
Enraged by what the police did to Park Kyung-wan, Yeo-jin tries to confront her superior but is stopped by Si-mok, who warns her of the consequences.

E9Special Investigation
Jul 8, 2017
Si-mok selects key lawyers and police officers to be part of the special investigations team. Their probe begins with Dong-jae as the starting point.

E10Revelation
Jul 9, 2017
Fearing for Ga-young's safety, Yeo-jin proceeds to transfer her to a different hospital. A nurse informs Yeo-jin of something strange that happened.

E11Cold and Damp
Jul 15, 2017
The truth behind Ga-young's convulsions is revealed. Chang-jun's wife receives a travel ban. Woo-gyun asks Chang-jun to help him get out of his mess.

E12Disbandment
Jul 16, 2017
Si-mok and Yeo-jin discover perplexing leads while searching Kyung-wan's basement. Dong-jae goes back to Chang-jun's office to fetch his cell phone.

E130 and 7
Jul 22, 2017
Returning home from the rooftop party, Si-mok discovers that an intruder has left something in his bedroom. Yeo-jin and Geon come over right away.

E14Another Body
Jul 23, 2017
Yeo-jin suspects a new killer is involved in the latest murder incident. Meanwhile, Si-mok collapses after leaving the autopsy.

E15Accomplice
Jul 29, 2017
Yeo-jin collects evidence as Si-mok interrogates the suspect. Many questions get answered, but the most important problem of all remains to be solved.

E16A Monster
Jul 30, 2017
Si-mok sets out to meet the one he believes is the real murderer. He gets his hands on a bag that will determine the futures of many people.
In the midst of a power clash between prosecutors and police, Si-mok and Yeo-jin uncover murky secrets as they pursue a labyrinth of intertwined cases.

E1Episode 1
Aug 15, 2020
On a foggy night, two college students drown at the beach. While Si-mok investigates, Yeo-jin tracks down a man who was at the scene of the incident.

E2Episode 2
Aug 16, 2020
Police and prosecutors each prepare members for joint discussions on investigative authority. Dong-jae brings Woo Tae-ha some cases of interest.

E3Episode 3
Aug 22, 2020
Yeo-jin recruits Geon. Digging into a policeman's death ruled as suicide, Si-mok and Dong-jae find signs that point toward a different story.

E4Episode 4
Aug 23, 2020
In a heated first session with prosecutors, Geon makes a pointed argument. At Hanjo, Lee Yeon-jae faces an oncoming family power struggle.

E5Episode 5
Aug 29, 2020
At the prison to interrogate an inmate, Yeo-jin runs into Si-mok and Dong-jae. Choi Bit has Yeo-jin deliver a mysterious file to an assemblyman.

E6Episode 6
Aug 30, 2020
Si-mok is ordered to find out what Yeo-jin knows about Bit's file. Ahead of a vote on the fate of her seat, Yeon-jae sets up an important meeting.

E7Episode 7
Sep 5, 2020
When Si-mok hears who’s gone missing, he starts gathering clues by going through phone records. Yeo-jin begins her own investigation.

E8Episode 8
Sep 6, 2020
Leading police efforts to locate Dong-jae, Yeo-jin connects the case to that of the dead policeman. Si-mok pays Yeon-jae a visit.

E9Episode 9
Sep 12, 2020
A perplexing photo containing a disturbing message surfaces. The police consider the possibility of the culprit being one of their own.

E10Episode 10
Sep 13, 2020
Si-mok turns his attention to an unusual case involving the sudden death of a former prosecutor, and finds that nothing quite adds up.

E11Episode 11
Sep 19, 2020
A witness, who says he saw the kidnapping, steps forward to identify the perpetrator. His claims could mean serious trouble for the police.

E12Episode 12
Sep 20, 2020
Taken off the case, Si-mok and Yeo-jin return to their work on the police-prosecutor council. Tae-ha and Bit head to a sensitive meeting together.

E13Episode 13
Sep 26, 2020
Kang Won-chul weighs a dilemma, and fields questions from Si-mok about the deceased attorney. A young prosecutor has something to show Si-mok.

E14Episode 14
Sep 27, 2020
A suspect is arrested, but Dong-jae remains nowhere to be found. In the interrogation room, Si-mok and Yeo-jin try to draw out a confession.

E15Episode 15
Oct 3, 2020
While getting to the truth about the night of the attorney's death, Si-mok and Yeo-jin learn about the involvement of a mystery person.

E16Episode 16
Oct 4, 2020
Details of the cover-up become public, but Si-mok isn't finished asking questions. The police-prosecutor council is called off.
Storyline
Hwang Shi Mok underwent brain surgery as a child to curb his violent temper, which left him devoid of emotions. Hwang becomes a prosecutor known for his piercing intelligence and logic, but he is ostracized because he lacks empathy and social skills. He is also one of only a handful of upright prosecutors who have refused to take bribes. One day, he encounters a stabbing victim while investigating corruption. He meets Lieutenant Han Yeo Jin at the crime scene. They join forces to root out corruption at the prosecutors’ office and solve a serial murder case.























