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Ended 2016 2 seasons tvN South Korea 8.2 (188)
Crime Mystery Sci-Fi & Fantasy Drama
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Overview


Detectives from the present and a detective from the past communicate via walkie-talkie to solve a long-time unsolved case.

Top cast

Lee Je-hoon
Lee Je-hoon
Park Hae-young
 Kim Hye-soo
Kim Hye-soo
Cha Soo-hyun
 Cho Jin-woong
Cho Jin-woong
Lee Jae-han
 Jang Hyun-sung
Jang Hyun-sung
Kim Bum-joo
 Jung Hae-kyun
Jung Hae-kyun
Ahn Chi-soo
 Kim Won-hae
Kim Won-hae
Kim Gye-chul
 Jung Han-bi
Jung Han-bi
Oh Yoon-seo
 Lee Yoo-jun
Lee Yoo-jun
Jung Heon-gi
 Kim Min-gue
Kim Min-gue
Hwang Ui-kyung
 Kang Chan-hee
Kang Chan-hee
Park Sun-woo
 Im Hwa-young
Im Hwa-young
Cha Soo-min

2 seasons

Season 1
2016 · 16 episodes
Season 2
2026 · 1 episodes