Coming back from work by night, shy watchmaker Tommaso runs over a girl with his car, luckily without serious consequences. Next day he finds her waiting for him at his door. She asks him for help, as she can't remember anything prior to the incident.
An English widow goes to Italy, falls in love with a dentist's son and marries him, against her straitlaced family's wishes.
Tullio Hermil is a chauvinist aristocrat who flaunts his mistress to his wife, but when he believes she has been unfaithful he becomes enamored of her again.