Police detective Huang Huo-tu, a ''Waisheng ren'' (Mainland Chinese) in Taiwan, has relegated himself to a mundane job as a Foreign Affairs Officer as self-punishment for blowing the whistle on corruption in the force, and his colleagues have turned their backs on him. His young daughter is left traumatized after being taken hostage in a gun battle, and his wife Ching-fang is filing for divorce. Huang is on the verge of a severe nervous breakdown.