Creator
Creator
Cast
Park Hae-young
Cha Soo-hyun
Lee Jae-han
Kim Bum-joo
Ahn Chi-soo
Kim Gye-chul
Oh Yoon-seo
Jung Heon-gi
Hwang Ui-kyung
Park Sun-woo
Video trailer
Synopsis
Detectives from the present and a detective from the past communicate via walkie-talkie to solve a long-time unsolved case. 
Original title 시그널
TMDb Rating 8.153 170 votes
First air date Jan. 22, 2016
Last air date Mar. 12, 2016
Seasons 2
Episodes 17
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