Donatella is a simple and honest roman girl, daughter of a bookbinder and girlfriend of Guido, a gas station owner. One day she finds a woman's handbag containing valuables and documents, and decides to return it to her owner, a wealthy American lady, who offers Donatella a job as a secretary as a reward: she has to manage the lady's villa during her absences. There, Donatella casually meets Maurizio, a rich, elegant and well-educated young man, and ends up falling in love.
Elsa Martinelli
as Donatella
Gabriele Ferzetti
as Maurizio
Walter Chiari
as Guido
Aldo Fabrizi
as Augusto Guiscardi, padre di Donatella
Abbe Lane
as se stessa
Xavier Cugat
as se stesso
Liliana Bonfatti
as veterinaria
Virgilio Riento
as Nicola, zio di Donatella
Giovanna Pala
as Maria Laura Castello
Giuseppe Porelli
as Pasquale
Caterine Williams
as la donna americana
Alan Furlan
as Giancarlo