Season 1, Episode Number 1 (You're Doomed)
Released: 2016-01-22
Runtime: 67 minutes
Profiler Park Hae-young hears a man calling his name through a discarded two-way radio. The voice starts talking about an unsolved crime.

Detectives from the present and a detective from the past communicate via walkie-talkie to solve a long-time unsolved case.
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Status: Returning Series
Homepage: http://program.interest.me/tvn/signal/
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