- Country South Korea
- Genres Crime, Drama, Science-Fiction, Thriller
- Runtime 70 minutes
- Total runtime 18 hours 40 minutes
- Status Ended
- Network tvN
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External links
TheTVDB page
IMDB page
TheMovieDB page -
Last update
29 août 2020 - 02:15
on 11 databases -
Signal
Detectives from the present and a detective from the past communicate via walkie-talkie to solve a long-time unsolved case.
