Abandoned by his mother shortly after immigrating to America, Gon is raised by the mafia and grows up to become a cold-blooded hit-man. Though usually flawless in taking out his targets, Gon makes a terrible mistake of killing an innocent young girl. A flood of guilt takes over his life and the situation becomes worse when his boss assigns him the job of killing the young girl's mother. Gon's new target, Mogyeong, is a risk manager at an investment firm and has buried herself in work to bury her grief. She is completely unaware of her role at the heart of a dangerous conspiracy. Finally, she meets the man who wants to tell her the truth behind the death of her child. Written by CJ Entertainmnet America

A desperate father who tries to save his daughter and a man who tries to save his wife. In their desperate efforts to save their beloved, the day repeats in endless loop, and two men realizes that there's third man who keeps murdering their beloved out of vengeance.

Jung-gu sends out homemade bombs to people who are likely to use them. He partners up with Hyo-min, the first person to actually detonate one of them. However, Hyo-min becomes reckless and stirs up Jung-gu's aggressive tendencies that he has tried hard to suppress. Finally, Jung-gu explodes in anger, killing the detective on his tail and framing Hyo-min for all his crimes. Written by anonymous