The Goblin

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'.