The only survivor of a coach attacked by bandits, a two-year-old girl is taken in by a priest and her sister.
Marianne becomes the companion of a rich, dying widow, Mrs. Dursan. But the reappearance of her disinherited son and his family create trouble.
Arriving in Paris with the priest's sister, Marianne finds herself distraught when she dies. Under the protection of Mr. de Climal, she finds a job with Mme. Dutour.
Pursued by Mr de Climal who wants to make her his mistress, Marianne takes refuge in a convent, Valville, madly in love, finds her.