Original Title: 시그널
S1 E16 - If You Don't Give Up
S1 E15 - Is It Really You?
S1 E14 - Not Now, But Maybe In The Past
Detectives from the present and a detective from the past communicate via walkie-talkie to solve a long-time unsolved case.
Signal - watch online: streaming, buy or rent
Currently you are able to watch "Signal" streaming on Netflix.