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.
Kim Min-sang was born on February 7, 1968 and is currently 56 years old.
Han Gi-joong was born on March 13, 1961 and is currently 63 years old.
Lee Hak-ju was born on January 9, 1989 and is currently 35 years old.