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Episodes (16)
Apr 28, 2018
The main protagonist tries to help the police catch a killer that kidnapped and murdered his childhood friend 15 years ago.
Jan 23, 2016
The main protagonist continues to try catching the culprit that kidnapped his childhood friend and after that they began a small police force which solved outdated unsolved cases and they are starting on a popular serial killer case.
Jan 29, 2016
The search for the serial killer continues as the main protagonist tries to change the case by communicating with a detective from the past.
Jan 30, 2016
The cold case squad figures out who the serial killer is, but not before the wrong suspect turns himself in.
Feb 05, 2016
Park Hae Young begins asking questions about Lee Jae Han. Meanwhile, the police force in Lee Jan Han's time struggles with a string of larceny cases.
Feb 06, 2016
Park Hae Young figures out that Oh Kyung Tae's true objective is the father of the girl he kidnaps.
Feb 12, 2016
Lee Jae Han catches the real culprit behind the burglaries, unwittingly changing the past for the worse again.
Feb 13, 2016
The cold case squad finds Shin Da Hye, who has been living under the murder victim's identity.
Feb 19, 2016
Park Hae Young uncovers another layer to Lee Jae Han's disappearance. An old demon from Cha Soo Hyun's past resurfaces.
Feb 20, 2016
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Feb 26, 2016
The Cold Case Squad catches the Hongwon-dong serial killer, but Lee Jae Han's determination changes the past again.
Feb 27, 2016
Park Hae Young becomes the prime suspect for the Section Chief's murder. Meanwhile, Lee Jae Han must find out who this "one" is before it's too late.
Mar 04, 2016
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Mar 05, 2016
Following the trail the Section Chief left, Park Hae Young uncovers the truth behind his brother's death. Meanwhile, Cha Soo Hyun finds Lee Jae Han's radio in Hae Young's possession.
Mar 11, 2016
Park Hae Young is framed and arrested for the murder of the Section Chief. Cha Soo Hyun sets out to save Lee Jae Han and to find the one witness who can bring down their enemy.
Mar 12, 2016
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About
Signal (also know as Sigeuneol) Season 1 (2016) is released on Apr 28, 2018. Watch Signal online - the Korean Crime TV series from South Korea. Signal is directed by Won Suk Kim and created by Eun-hee Kim with Lee Jehoon and Kim Hye-su. Signal is available online on Netflix and Amazon Prime Video.
Fifteen years ago, a female child was kidnapped on the way from school. At that time, Park Hae Yeong, who was an elementary school student, witnessed the girl being taken away. A few days later, the girl was found dead, and detectives couldn't find the culprit. As time went by, Hae Yeong started distrusting the police. Fifteen years later, Hae Yeong is now a police officer and criminal profiler. One day, he finds a walkie-talkie that allows him to get in contact with Detective Lee Jae Han who is in the past. Police officers Hae Yeong, Jae Han and Cha So Hyun then set out on a journey to solve cold cases.