意大利某个医院里的老人临终前，她美丽的孙女Olga飞车赶来。老人告诉她有一盒珠宝在俄罗斯。同时却被两个开救护车的，一个等妻子等孩子的大胡子黑手党，一个在医院养病的瘸子和一个医生听了去了。于是，一票人杀往俄罗斯，又有个英俊潇洒…

Buffalmacco and his friend Bruno Degli Olivieri make a joke of Calandrino, forcing him, for ten florins, to buy a stone that should make invisible the one who owns it.