Detectives from the present and a detective from the past communicate via walkie-talkie to solve a long-time unsolved case.
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Netflix
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see all options Availability data: JustWatch
- Seasons
- 2
- Episodes aired
- 16
- Latest aired
- S01E16
- Total runtime
- 19h 13min
Timeline when each season aired
- Season 1 January 2016 – March 2016 16 episodes
- the show was away for 10 years and 8 months
- Season 2 November 2026 – December 2026 8 episodes
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S01E01 You're Doomed
January 22 · 67min find the promo
Show synopsis
Profiler Park Hae-young hears a man calling his name through a discarded two-way radio. The voice starts talking about an unsolved crime.
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S01E02 We Still Have a Chance
January 23 · 66min find the promo
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The statute of limitations is lifted after the suspect's arrest. Hae-young joins Soo-hyun's team for the newly established cold case squad.
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S01E03 We Can Prevent the Killings
January 29 · 65min find the promo
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Reality changes after Hae-young exchanges information with Jae-han. Hae-young tries to work together with Jae-han in 1989 to prevent the next murder.
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S01E04 We Found the Killer
January 30 · 65min find the promo
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The ninth victim is Won-kyung, the woman Jae-han loves. A driver turns himself in, but Soo-hyun and Jae-han determine that his son is the real killer.
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S01E05 Changing the Past Alters the Present
February 5 · 68min find the promo
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Hae-young starts to investigate Jae-han's disappearance. Jae-han's former colleagues get suspicious about seeing Hae-young digging into the past.
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S01E06 Catch Him by All Means
February 6 · 70min find the promo
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Seeking vengeance for the events that lead to the death of his daughter, Kyung-tae commits a kidnapping after getting out of prison for burglary.
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S01E07 We Must Dig Deeper
February 12 · 67min find the promo
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Jae-han arrests Se-kyu for the serial burglary case, but the culprit is freed after serving a short sentence; Kyung-tae still commits murder.
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S01E08 How Are You Alive?
February 13 · 74min find the promo
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Soo-hyun and Hae-young notice a connection between the burglary case and Da-hye, the woman who killed herself twenty years ago.
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S01E09 Hongwon-dong Case
February 19 · 74min find the promo
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Hae-young learns that Chi-soo and Jae-han met in 1999 during a case in Inju. After serving time for the crime, Hae-young's brother had killed himself.
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S01E10 Someone Has to Stop the Bad Guys
February 20 · 72min find the promo
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The bodies discovered in the mountains appear to be more victims of the 1997 serial murder case. Jae-han learns that Soo-hyun became team leader.
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S01E11 The One Last Case
February 26 · 78min find the promo
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Hae-young and Soo-hyun arrest Jin-woo after coming to the conclusion that he is the killer. Hae-young asks Jae-han about the Inju rape case.
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S01E12 The Case Was Manipulated
February 27 · 78min find the promo
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Hae-young becomes a suspect for the murder of Chi-soo. Jae-han realizes who the principle offender of the attack on Hye-seung is.
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S01E13 The Real Assailant
March 4 · 74min find the promo
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Soo-hyun and the others mourn after confirming that the remains belong to Jae-han. Hae-young learns that Jae-han used to look after him in the past.
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S01E14 Not Now, but Maybe in the Past
March 5 · 74min find the promo
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Hae-young realizes the possibility that his brother could have been murdered after learning from Hye-seung that Sun-woo was not guilty.
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S01E15 Is It Really You?
March 11 · 72min find the promo
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Hae-young is arrested for the murder of Chi-soo. Soo-hyun hears Jae-han apologizing over the radio for not being able to prevent Sun-woo's death.
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S01E16 If You Don't Give Up
March 12 · 89min find the promo
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Hae-young is in critical condition after being shot while meeting with Sung-bum. In 2000, Jae-han has been captured by Bum-joo.