When his police detective ex-wife is shot dead in a restaurant, “Hsiang Ming” (Yuen Biao) is initially frustrated by the negative impact on his emigration prospects! After quickly apprehending and overpowering the killer, “Miss Pai” (Pat Ha), things become even more complicated for Hsiang as he realizes that she and he are now targets of his erstwhile colleagues – corrupt detectives seeking to cover evidence of their own drug crimes. Framed for murder, Hsiang’s options rapidly contract as the killers target his elderly mother and young daughter. Wounded, Hsiang is forced to rely on the assassin Pai, who slowly discovers warmth while caring for him and his young daughter.