Claudio and Maurizio, two young and reckless taxi drivers in a Roman gas station meet two American tourists, daughters of a Spanish man that has oil wells in America. Maurizio and Claudio walk the tourists to the Eternal City and forget their girlfriends Patricia and Lorella. The brides, aware of their wanderings,begin to pay them with the same currency.
The voice of one of his former classmates studying singing causes an irresistible itch for a wealthy industrialist. The cause is an old aversion that the industrialist has for the singer: he can only heal by overcoming this aversion and transforming himself into a benefactor of the hated ex-partner.
During the first Napoleonic expedition into Italy, Thibaud is seriously injured before being caught up in a mystery involving his wife, her rightful inheritance and his own daughter's happiness.