Widower Lee Sang-hyeon lives a quiet life with his 15-year-old daughter Su-jin. But one day she is abducted and raped, and her corpse is found at an abandoned public bathhouse. Frustrated by the lack of progress in his daughter';;s case, Sang-Hyun gets a mysterious hint through an anonymous text message with information on the culprit. He learns the identity of the two murderers and came to kill one. Now it';;s the chasing between the police and Sang huyn, the more fierce one between him and the other murderer.