Following the death of his wife, Sang-hyeon lives a quiet life with his 15-year-old daughter Su-jin. But one day she is abducted, raped and killed and Sang-hyeon is left by himself, with nothing left to cling on to but his feelings of anger and despair. The investigation into his daughter’s death is progressing slowly, so restless and unable to sit quiet any longer, he decides to take matters into his own hands. Sang-hyeon receives a mysterious call from someone who tells him an address to which he goes and finds evidence incriminating the two killers. He tracks one down and kills him and now that the police are on his tail he is hellbent on finding the second man responsible for his daughter’s death.