本片设定在东京的一晚，一名时运耗尽的拳击名手利奥(洼田正孝饰)遇到了他的初恋莫妮卡(小西樱子饰)。莫妮卡是一名吸毒的应召女郎，但她依旧很天真。莫妮卡不知不觉陷入毒品走私计划之中，两人在这晚被腐败的警察、黑帮、利奥的对手以及三合会派来的女杀手追杀。
Phoebe and fellow American Julian Peters meet in Rome, find a lost dog, and agree to return it to Monte Carlo to split the five thousand dollar reward. Discovering the dog's owner dead, they panic and become fugitives. Other victims of misfortune also become suspects, as the plot twists and luck and judgment desert everyone.
