A mysterious envelope arrives at the police station. Ducheol blackmails Taesoo using Habin. Habin learns the secret behind Jisu's death, while Eojin firmly suspects Habin as the killer.
The violent crimes unit identifies Habin as a suspect. Taesoo realizes there's no escape this time. He desperately tries to block the investigation, but soon faces a shocking truth through the evidence seized from Habin.
The true killer is revealed, but the motive behind the murder remains unclear. Habin refuses to let go of the intent to kill, leaving Taesoo with deep guilt. Can this father-daughter duo live a normal life from now on?