Negotiator expert Cheuk Man Wai (played by Sean Lau) unexpectedly becomes the prime suspect in a murder case. Forced into a corner, he occupies the police station, taking officers hostage, and demands negotiations with the former negotiator Tse Ka Chun (played by Francis NG). With Tse's expertise in psychological manipulation and Check's exceptional skills, they engage in a battle of wits. As the verbal sparring deepens, their positions and mindsets gradually change... This film is adapted from the American movie "The Negotiator".