Total votes: 28819

Director: Kim Won Suk

Screenwriter: Kim Eun Hee

Aired on: Jan 22, 2016

Total Episodes: 16

Network: tvN

Duration: 1 hr. 15 min.

Year: 2016

Country: South Korea

Native Title: 시그널

Content Rating: 15+ – Teens 15 or older

Alternative Titles: Sigeuneol

Genre: Mystery, Sci-Fi, Thriller


Fifteen years ago, a young girl was unauthorized takingped on the way from school, and Park Hae Yeong, who was an elementary school student at that time, witnessed the crime. A few days later, the girl was found dead, and the police were not able to 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. Oneday, 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.

(Source: MyDramaList)


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