警察乐一言（古天乐饰）的独生女遭杀害，凶手施害手法极其残忍……这一切都指向亡命之徒宋境南（林家栋饰）。怒火中烧的乐一言决定拼死一搏，为女复仇。两位父亲，三起命案，以爱为名的杀女之仇，这一次他一定要...
这是吴镇宇首次执导的影片，导演企图通过片中人物的交流、命运来揭示环境变迁、社会进步给人带来的枷锁，呼吁人们相互之间彼此信任。烂头（吴镇宇 饰）是一名普通的香港警察，他的佩枪编号9413,似乎冥冥中就注定了他的悲剧命运。烂头现在的精神几近崩溃，已经丧失了全部记忆。他唯一的办法就去寻求心理医生的帮助，他一直想逃离自己现在的生活状态——肮脏、迷乱的世界，但是他又似乎永远都无法回到自己过去那个干净明亮的世界……
Robbins is sentenced to prison for the assassination of his general officer, a prison you leave only when you die. Since nobody ever leaves the prison, nobody knows what the prison is like. The prison manager realizes this and buys himself an island playground called "Absolom," where the worst prisoners are free to create an isolated barbaric society, and where the strongest men rule...a living hell. Robbins is sent to Absolom after he almost kills the prison manager.
