Series
Signal
There are those who are born monsters, but there are also those who are made into monsters by people.
8.220162 seasons · 17 episodesOngoing
Overview
Detectives from the present and a detective from the past communicate via walkie-talkie to solve a long-time unsolved case.
CrimeMysterySci-Fi & FantasyDrama
Seasons
Season 1
16 episodes · 2016
Communicating via a walkie-talkie that transcends time, a profiler from 2015 and a detective from 1989 join forces to tackle crimes and injustice.
The Second Signal
8 episodes · 2026
Cast
Lee Je-hoon
Park Hae-young
Kim Hye-soo
Cha Soo-hyun
Cho Jin-woong
Lee Jae-han
Jang Hyun-sung
Kim Bum-joo
Jung Hae-kyun
Ahn Chi-soo
Kim Won-hae
Kim Gye-chul
Jung Han-bi
Oh Yoon-seo
Lee Yoo-jun
Jung Heon-gi
Kim Min-gue
Hwang Ui-kyung
Kang Chan-hee
Park Sun-woo
Im Hwa-young
Cha Soo-min
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