Signal (2016)
There are those who are born monsters, but there are also those who are made into monsters by people.
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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Episodes
Next episode: S2E1 · 2026-11-30
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1. You're Doomed2016-01-22 · 1h 7mProfiler 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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2. We Still Have a Chance2016-01-23 · 1h 6mThe 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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3. We Can Prevent the Killings2016-01-29 · 1h 5mReality 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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4. We Found the Killer2016-01-30 · 1h 5mThe 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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5. Changing the Past Alters the Present2016-02-05 · 1h 8mHae-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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6. Catch Him by All Means2016-02-06 · 1h 10mSeeking 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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7. We Must Dig Deeper2016-02-12 · 1h 7mJae-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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8. How Are You Alive?2016-02-13 · 1h 14mSoo-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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9. Hongwon-dong Case2016-02-19 · 1h 14mHae-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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10. Someone Has to Stop the Bad Guys2016-02-20 · 1h 12mThe 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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11. The One Last Case2016-02-26 · 1h 18mHae-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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12. The Case Was Manipulated2016-02-27 · 1h 18mHae-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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13. The Real Assailant2016-03-04 · 1h 14mSoo-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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14. Not Now, but Maybe in the Past2016-03-05 · 1h 14mHae-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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15. Is It Really You?2016-03-11 · 1h 12mHae-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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16. If You Don't Give Up2016-03-12 · 1h 29mHae-young is in critical condition after being shot while meeting with Sung-bum. In 2000, Jae-han has been captured by Bum-joo.
Cast
Lee Je-hoonPark Hae-young
Kim Hye-sooCha Soo-hyun
Cho Jin-woongLee Jae-hanImages
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