1943年的威尼斯，由雷纳托·布拉斯基领导的游击小队不顾国家解放委员会主张的审慎原则，组织了一系列针对法西斯分子的自主恐怖袭击。雷纳托决心贯彻自己的理念，即便赌上性命——甚至远不止于此……

A speed-boat racer suffers amnesia after an boating accident and goes to his isolated villa to recuperate. His relationship with his wife is troubled, so he starts an affair (sort of) with the another woman, which results in one of the three of them being shot. But there are several more twists--and more murders--to come.