Name: Signal
Released: 2016-01-22T00:00:00.000Z
Cast: Kim Hye-soo, Cho Jin-Woong, Lee Je-hoon

TV Show · Crime · Thriller

A cold-case profiler in 2015 and a detective in 1989 work together to solve a series of related murders spanning three decades using a special walkie-talkie to communicate with each other.

2016 · 1h 16m

Starring Kim Hye-soo, Cho Jin-Woong, Lee Je-hoon

Director Kim Won-seok, Kim Won-seok

EPISODE 1

Episode 1

Police officer Park Hae Young, haunted by a classmate's murder 15 years prior, becomes disillusioned in law enforcement; his outlook changes upon discovering a mysterious walkie-talkie that picks up a strange transmission.
EPISODE 2

Episode 2

The chief of police establishes a cold case team after the Kim Yoon Jung kidnapping and assigns them to investigate the infamous Gyeonggi Nambu serial murders.
EPISODE 3

Episode 3

As he works to solve the serial murders, Park Hae Young realiSes the true source of the radio transmissions originates in the past.
EPISODE 4

Episode 4

As the cold case squad closes in on the serial killer's identity, a man turns himself in who cannot be the true suspect.
EPISODE 5

Episode 5

Park Hae Young wants to know more about Lee Jae Han; a series of larceny cases occupy the police department in Lee Jan Han's era.
EPISODE 6

Episode 6

Park Hae Young realises that kidnapper Oh Kyung Tae has designs on his hostage's father, forcing him to take action.