Nick Johnson is a professional seducer who intends to inherit the fortune of Francesca, the widow of a wealthy Italian count who died on the day of his wedding. Several flashbacks recall Nick’s adventures: as a young orphan he is adopted by a widow whom he electrocutes to inherit her property; a few years later he marries an international celebrity who annoys him so much with her constant chatter that, during the ceremony preceding the launch of a rocket to the moon, he abandons her in the rocket; his second marriage is no better: He has to get rid of his wife, a sportswoman with unbreakable stamina, by making her jump a fence on horseback, on the other side of which is a great abyss…