Born Again S01E04 - Episode 4

Ha Eun doubts that Ji Chul murdered anyone and goes to prison to ask him about it. After realising he was the killer, she testifies as a witness in court, but Ji Chul's defense attorney presents her defendant as incapable of killing anyone. Ji Chul is to be sent to a psychiatry ward and then to an asylum. Hyung Bin and Ha Eun plan to get married, but Hyung Bin is convinced Ji Chul will escape and try to kill Ha Eun. This pretty much happens, except Ji Chul's goal was never to harm Ha Eun but saves her and gives her his heart. Things turn bad and Ji Chul kills Hyung Bin, and after Ha Eun tells him he will never be reborn, he kills himself as well, hoping that to be true. The story then switches to the present time.