Virginia de Leyva, daughter of a Spanish Lord, becomes a nun in Monza, in 1600s. She becomes very strict with herself and the students until she's unable to resist a romance with the nobleman Gian Paolo Osio which will lead both to danger.
Gabriella, a maid, wears a jewel at a dancing party which belongs to her mistress, and when it is stolen she is accused of the theft and sent to jail. Some other maids organize a search party for the real thief who seems to be a moustached youth who continually sings a popular song.
Retired social worker "Petrucci" goes to live with a baker and his family with whom he soon becomes fond. When a film producer arrives and attempts to lure the young "Gina" it falls to the ailing old man to save her from temptation.
