Three years after the expiration of the statute of limitations, he met the criminal who killed his son. Detective Ryoo I-jae lost his beloved son in a hit-and-run accident. Without finding the criminal, the statute of limitations passed and the family collapsed. He was transferred to Namwon after drinking alcohol to soothe his exhausted daily life. When he was about to live a new life from meeting Eom So-hyeon, he ran into Im Hak-chon by chance, the murderer of his son.