Jack (Leon Lai) and Martin (Ching Wan Lau) become friends, unaware they're fighting on opposite sides of a vicious Triad gang war. But war is hell, and the two men, crippled in battle, soon find themselves cast away by their respective gangs. When Jack and Martin's lovers (YoYo Mung and Fiona Leung) are both killed by Triads, the two battle-scarred men must team up to exact their revenge. Johnny To directs this stylish action-noir.