Se-hyun finds her childhood photographs planted by Cho Kyun in the third body and is shocked. Se-hyun, who is in a hurry by the caught clue, heads to Hae-ryong, who lived with Jo Kyun in the past. There, there is a faces of Cho Kyun and his new murder assistant, Se-eun.

Se-hyun, who managed to deal with the trap of Cho Kyun, meets Jocyun at the appointment. On the other hand, Jung Hyun finds out that Se-hyun hid the outcome of the drug and doubts.