Signal
2016·TV series·2 seasons · 24 episodes
Crime, Mystery, Sci-Fi & Fantasy, Drama
8.2 / 10 (208 votes)
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.
- Created by
- Kim Eun-hee, Kim Won-suk
- Original language
- 한국어
- First aired
- 22 January 2016
Where to Watch
Availability in the US · Subtitle and audio track data
Netflix
Watch now →Subtitles
Arabic German English French Indonesian Japanese Korean Malay Portuguese Spanish Thai Turkish Vietnamese Chinese
Audio
Korean
Last verified 29 Oct 2026
Prime Video
Watch now →Subtitles
Arabic Czech Danish German Greek English Tagalog Finnish French Hindi Hungarian Indonesian Italian Korean Malay Dutch Norwegian Polish Portuguese Romanian Spanish Swedish Thai Turkish Vietnamese Chinese
Audio
Korean Spanish
Last verified 29 Oct 2026
Cast
Lee Je-hoon
Park Hae-young
Kim Hye-soo
Cha Soo-hyun
Cho Jin-woong
Lee Jae-han