Two detectives communicate through a walkie-talkie to solve a cold case. One detective exists in the present day, and the other detective exists 15 years in the past.
6.9
(9)
Original Title: シグナル 長期未解決事件捜査班
Release Date: 10/04/2018
Episodes: 10
Seasons: 1
Last Episode Air Date: 12/06/2018
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