Synopsis
A walkie-talkie connects a present-day profiler with a detective in 1989, and together they solve cold cases.
What makes Signal worth watching
Often called the finest crime drama Korea has ever produced.
Signal represents a strong example of south korea crime from the 2016 production cycle. Korean studios have spent the past decade refining the kind of long-form storytelling on display here — careful character work, restrained pacing in the early episodes, and a willingness to let emotional beats land without overstatement. The blend of Crime and Mystery elements gives the show its tonal signature, sitting somewhere between mainstream comfort viewing and prestige drama.
The cast is led by Lee Je-hoon, Kim Hye-soo, Cho Jin-woong. It originally aired on tvN, and has since travelled internationally through the streaming partnerships listed above.
Where to watch Signal online
You can currently stream Signal on the following platforms (regional availability varies):
- Netflix — see all Netflix Asian drama listings on DramaSeek.
- Viki — see all Viki Asian drama listings on DramaSeek.
Streaming rights for Asian dramas shift constantly. We update each title page when a new platform picks up a series or a contract expires. If a service is geo-locked in your region, see our guide to legitimate options for international drama viewers.
If you liked Signal
Viewers who enjoy Signal typically also enjoy other south korea crime. Below are six closely related titles drawn from our catalogue, ranked by genre and country overlap.
