WARNING︰THIS ARTICLE CONTAINS MATERIAL WHICH MAY OFFEND AND MAY NOT BE DISTRIBUTED , CIRCULATED , SOLD, HIRED , GIVEN , LENT , SHOWN , PLAYED OR PROJECTED TO A PERSON UNDER THE AGE OF 18 YEARS.
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 14-hour deadline Tae-gu gas set, Chae-yoon tirelessly tries to crack the unusually calm perp over multiple video-calls. Eventually, the shocking truth begins to unveil.