The plot weaves several episodes with several groups of people, Roman families, youth gangs and young love couples, who spend a Sunday at the beach of Ostia.
The famous composer's life and his career. His love story with Isabella Colbran, the soprano who was to become his wife and the singer in all his operas up to the unfortunate day she lost her voice.
An American starlet inflames two Italian peasants who forget about their respective fiance's. One of them even thinks of marrying her and begins to plan for the engagement banquet. When the girl decides to live the countryside harmony reigns again.
