Sang-Hyun, who lost his wife, lives with his daughter Soo-Jin. One day, Soo-Jin is raped and murdered. Frustrated by the lack of progress in his daughter's case, Sang-Hyun gets a mysterious hint by an unknown voice. He learns the identity of the two men who killed his daughter and the address of one of those two men. Sang-Hyun then goes to the home of that man and finds some evidence. Full of anger he kills the murderer. The father is now a fugitive and searched by the police while hunting down the other killer on himself.