Sun-hui grows more suspicious of her family after a van tries to hit her. She is told about the boy in the picture, and the man who introduced himself as her dad's relative turns out to be a police officer. Meanwhile, Su-yeon's belongings are found in the Han River, and Sun-hui begins to look for information on the Gongseo-dong Fire and Kidnapping Case.

Jin-hyeok is arrested and interrogated by the police after evidence was found in his car. However, he is set free as Su-yeon is seen again. Meanwhile, Sun-hui, Su-yeon, and Hyun-min find themselves in trouble as a hostage situation occurs and Sun-hui's place catches fire.