An attempted murder occurs at a laundromat, and Se-hyun is wanted. Jeong-hyeon, who has been suspended from duty, decides to conduct an independent investigation. Meanwhile, Se-hyun, who was captured by Jo Gyun and imprisoned in a truck, encounters Se-eun, the girl who replaced him, and gets caught up in a horrific family game.

Jung-hyun is in danger due to a serious injury. Se-hyun is forced to make a crucial decision to protect Se-eun, and let the world know that there is another victim, Se-eun, who is still suffering.