Lee Je-hoonPark Hae-young
Kim Hye-sooCha Soo-hyun
Cho Jin-woongLee Jae-han
TV series
Signal
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.
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