Gang-pae is No.2 gangster in his organization who longs to become an actor. Soo-ta, a superstar actor, takes on the role of a gangster in an action movie called . But when his partner actor leaves the set due to Soo-ta’s violent ways, the production is on the verge of shutting down. Feeling responsible, Soo-ta requests Gang-pae, whom he met by chance, to play alongside him in the movie in order to save the productionGang-pae is #2 gangster in his organization who longs to become an actor. Su-ta is a superstar actor who takes on the role of a gangster in an action movie called Rough Cut. When another actor leaves the set due to Su-tas violent ways, the production is on the verge of shutting down. Su-ta asks Gang-pae, whom he met by chance, to play alongside him in the movie in order to save the production.

An ace police crisis negotiator, Chae-yoon, is called to the scene where her supervisor is taken hostage. Through the control room monitor, she is faced with the cold-blooded hostage taker, Tae-gu, whose demeanors are difficult to interpret. Against the 21-hour deadline Tae-gu has set, Chae-yoon tirelessly tries to crack the unusually calm perp over multiple video-calls. Eventually, the shocking truth begins to unveil.