Pia Lindstrom

Domenico Soriano (Marcello Mastroianni) is about to marry, but when he learns that his mistress Filumena Marturano (Sophia Loren) is ill, he stays by her side, learning later that it was a ploy by her to get him to marry her instead.

Marcello Mastroianni co-stars as the irrepressibly carnal businessman Domenico, who discovers Loren's Filumena as a young prostitute and keeps her as his mistress and confidante. When he chooses to marry a young cashier instead of her, Filumena is furious, and resorts to a series of wild and hilarious ruses to win back his hand.