Former gangster Doo-hyun, known as "Goblin", served time for his boss' murder to protect Young-min. Out of prison, Young-min kidnaps Doo-hyun's daughter, forcing him to seek vengeance and reclaim his "Goblin" persona.

Doo-hyun, who goes by the name the "Goblin", goes to prison for taking the fall for Young-min who killed their boss. Released after 10 years, Doo-hyun had been living a normal life, but Young-min goes so far as to kidnap Doo-hyun's daughter to keep his mouth shut. Enraged, Doo-hyun seeks revenge and announces the return of the real "Goblin".