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TV Show
First Air Date: January 22, 2016
Last Air Date: March 12, 2016
Genre: Crime, Mystery, Sci-Fi & Fantasy, Drama
Seasons: 2
Episodes: 17
Rating:
Cast: Lee Je-hoon, Kim Hye-soo, Cho Jin-woong, Jang Hyun-sung, Jung Hae-kyun
Created By: Kim Eun-hee, Kim Won-suk
Network: tvN
Overview
Detectives from the present and a detective from the past communicate via walkie-talkie to solve a long-time unsolved case.