Seasons
Season 1
16 Episodes
Season 2
1 Episodes
Season 1
16 Episodes
Season 2
1 Episodes
“There are those who are born monsters, but there are also those who are made into monsters by people.”
Detectives from the present and a detective from the past communicate via walkie-talkie to solve a long-time unsolved case.
Created by: Kim Eun-hee, Kim Won-suk
Watch NowStream Signal now in HD quality.
Lee Je-hoon
Park Hae-young
Kim Hye-soo
Cha Soo-hyun
Cho Jin-woong
Lee Jae-han
Jang Hyun-sung
Kim Bum-joo
Jung Hae-kyun
Ahn Chi-soo
Kim Won-hae
Kim Gye-chul
Jung Han-bi
Oh Yoon-seo
Lee Yoo-jun
Jung Heon-gi
Kim Min-gue
Hwang Ui-kyung
Kang Chan-hee
Park Sun-woo
Im Hwa-young
Cha Soo-min
2020
2021
2026
2022
2019
2021
2021
2024
2024
2011
2019
2024
2018
2017
2021
2005
2023
2022
2020
2003