An hour-long live broadcast goes on air in hopes of saving Han Kook. During the live broadcast, endless tip-offs and reports from former victims of the predator flood into the broadcast station.
Ba Reum makes the final decision to turn himself in and finish one last mission that only he can do. Hong Ju also shares her big secret that's been tormenting her for years.
While Han Kook is still missing and his life is under threat, the police haven't found any clues on the culprit. When Moo Chi gets back on his feet and starts investigating Bong Yi's grandmother's case.
Ko Nam, a bright and insightful kid finds out about a cat killer around his neighborhood. One day, he promises to share his personal investigation with Bong Yi but unexpectedly goes through an accident.
Ba Reum starts to remember everything and is filled with guilt. When Ba Reum sees Han Kook's mother desperately looking for her child even after a year, he decides to confess his crimes and clear Yo Han's name.
Moo Chi feels that something is suspicious about Sung Yo Han, but he can't find any evidence yet. A boy gets kidnapped and Moo Chi gets a call from the kidnapper. He demands Moo Chi to find out the reason why the boy had to be kidnapped.
Moo Chi and Bong Yi get closer to the truth. In the meantime, Ba Reum tries to find his aunt, the last missing puzzle piece. Sang, who tries to confirm Ba Reum's alibi, finds something suspicious at Ba Reum's house.