2018
S01E20
A psychopath's ruthless serial murders have left the entire nation gripped with fear and chaos. An honest and justice-seeking rookie police officer and a veteran detective with a tragic past, face against the killer. After the encounter with the psychopath, their lives totally change.
Ba Reum keeps hearing Yo Han’s voice in his head telling him to kill people. The hallucination eventually made him murder Woo Hyung Chul. When he goes to the station to turn himself in, he finds out all the evidence related to his murder is gone, including Woo Hyung Chul’s body. Bong Yi runs into Kang Duk Soo, which makes her anxious. On a rainy day, Kang Duk Soo starts making a move again.