Peppino Bardellotti, a widower, lives in Milan with his four daughters and ex sister-in-law Matilde, who urges girls to settle down by marrying a wealthy man.

A lawyer, married but temporarily alone at home, finds himself in the house a beautiful lady who tries to escape from her jealous husband. Fascinated by the beauty of the unexpected guest, the lawyer is determined to conquer her, in vain. But when the woman leaves, she discovers that she has been stolen some money.

The young Claudia wants to escape from the gray life of the province and aims rich men but each time with unhappy results. Only the brother will eventually succeed in shaking her from this purpose.