A child''''s world collapses when his mother runs off with her lover.

The film follows the anguish of the four-year-old, Prico, after his mother, Nina, leaves his father, Andrea, for her lover Roberto. Prico is sent to his aunt and then to his grandmother. Nina returns when Prico is sick and vows to give up Roberto, even though he persists in seeing her. The family situation gradually improves until they take a holiday on the Italian Riviera.