TV series
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.
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Checked Jul 22, 2026
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, crew and production details
Cho Seung-wooHwang Si-mok
Bae DoonaHan Yeo-jin
Lee Jun-hyukSeo Dong-jae
Jeon Hye-jinChoi Bit
You Chea-myungLee Chang-jun
Choi Mu-sungWoo Tae-ha
Shin Hae-sunYoung Eun-soo
Yoon Se-aLee Yeon-jae
tvNSouth Korea
Studio DragonSouth Korea
IOK CompanySouth Korea
Ace FactorySouth Korea
CJ ENMSouth KoreaWatch options above are for the show and may vary by season or episode.
Episode 1
As a teen, prosecutor Hwang Si-mok received surgical treatment for his abnormally developed brain, but the procedure left behind serious side effects.
Guest stars Ye Su-jeong, Park Soon-cheon, Uhm Hyo-seop, Yoon Kyung-ho
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Episode 2
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.
Guest stars Ye Su-jeong, Uhm Hyo-seop, Yoon Kyung-ho
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Episode 3
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.
Guest stars Ye Su-jeong, Park Soon-cheon, Uhm Hyo-seop, Nam Kee-ae
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Episode 4
Rumors quickly spread about Si-mok's violent nature. Regardless, he persists in his investigation. He finds his mentee, Young Eun-su, suspicious.
Guest stars Ye Su-jeong, Uhm Hyo-seop, Nam Kee-ae
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Episode 5
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.
Guest stars Ye Su-jeong, Uhm Hyo-seop, Yoon Kyung-ho, Ha Mheen
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Episode 6
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.
Guest stars Ye Su-jeong, Uhm Hyo-seop, Yoon Kyung-ho
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Episode 7
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.
Guest stars Ye Su-jeong, Lee Jae-yong
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Episode 8
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.
Guest stars Ye Su-jeong
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Episode 9
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.
Guest stars Uhm Hyo-seop, Yoon Kyung-ho, Nam Kee-ae, Sunwoo Jae-duk, Lee Jae-won
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Episode 10
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.
Guest stars Uhm Hyo-seop, Lee Jae-won
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Episode 11
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.
Guest stars Uhm Hyo-seop
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Episode 12
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.
Guest stars Tae In-ho, Uhm Hyo-seop, Sunwoo Jae-duk
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Episode 13
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.
Guest stars Uhm Hyo-seop, Yoon Kyung-ho, Lee Jae-won
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Episode 14
Yeo-jin suspects a new killer is involved in the latest murder incident. Meanwhile, Si-mok collapses after leaving the autopsy.
Guest stars Uhm Hyo-seop, Nam Kee-ae
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Episode 15
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.
Guest stars Uhm Hyo-seop, Yoon Kyung-ho, Lee Jae-won
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Episode 16
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.
Where to watch StrangerEpisode information updated Jul 22, 2026
