Through the Darkness

January 14, 2022

Song Ha-yeong pursues a criminal known for targeting young women. Kook Yeong-su looks to form a team of criminal behavioral analysts.

January 15, 2022

Ha-yeong consults a criminal to understand a killer’s motives. An arrest leads to a startling interrogation session and a break in the case.

January 21, 2022

The grisly murder of a child catches the attention of Ha-yeong and Yeong-su. A determined police captain clashes with the team.

January 22, 2022

When a suspect’s home is searched, the police make a gruesome discovery. Ha-yeong and Yeong-su grow frustrated as the investigation continues.

January 28, 2022

A crooked new police chief causes trouble for the team. The deaths of a professor and his wife touch off a series of brutal murders.

January 29, 2022

Yoon Tae-gu and Kim Bong-sik seek to set boundaries on the behavioral analysis team. A complex investigation sends the police down a twisted path.

February 25, 2022

Ha-yeong spends time with his mother on his birthday. With two killers on the loose, the investigators are faced with high-pressure stakes.

February 26, 2022

A chase takes a risky turn. When a suspect asks for a high-ranking officer, Ha-yeong hatches a plan. A search for victims' bodies continues.

March 4, 2022

The behavioral analysis team agrees to an interview with a journalist. Ha-yeong seeks to enter the killer’s mind, but it takes a toll on him.

March 5, 2022

During interviews and crime scene reenactments, Ha-yeong and the police dive deep into a ruthless suspect's psyche and past trauma.

March 11, 2022

A horrific accident forces Ha-yeong to reflect on the mental impact of his work. Meanwhile, two people go missing from a karaoke bar, raising suspicions.

March 12, 2022

Police and the analysis team investigate a murder suspect who is known for charming women and luring them into his car.