On a rainy night professor Enzo Stefanelli coincidentally rescues the life of a young man who turns out to be a professional killer. In return for this gesture the killer promises him to kill any enemy of the professor. Against the professor's wishes, the killer sets off in search of a potential enemy in his environmen…

罗伯特（Roberto Ciufoli 饰）童年时曾经目击过一起凶杀案，他并没有看清凶手的长相，只知道凶手穿了一双黄色皮鞋，这成为了罗伯特一生的阴影。长大之后，罗伯特成为了一名甜品师。一天，姑妈告诉罗伯特，自己准备将所有的财产都留给他，但有一个条件，那就是罗伯特要在她100岁的生日当天在公爵剧院举办一场演出。这并不是一件轻松的差事，因为…