Gianna, a young radio singer, marries Giulio, director of a travel agency. Soon after, they welcome a child. The tranquility of their family life is deeply disturbed by the arrival in Rome of a French tourist, Giselle, who falls madly in love with Giulio. He reciprocates her feelings and becomes her lover. Gianna separates from her husband and devotes her attention to the child, while Giulio begins to live with Giselle. But the thought of his family leads Giulio to ponder severing ties with his ...