In the film"Maid's Diary", Celestine, a chambermaid, takes on a new job at the Lanlaires' country estate. Determined to improve her life as a female servant, she initially sets her sights on seducing a wealthy man. However, the Lanlaires' household is under the strict control of Mme Lanlaire and her peculiar valet Joseph, making her plan difficult. Celestine then turns her attention to the neighbor, ex-officer Mauger, which seems to be successful. But when the Lanlaires' son returns home, Celestine finds herself caught in a love triangle involving the young and charming Georges Lanlaire, the alluring Captain Mauger, and the enigmatic Joseph. As Celestine navigates the complexities of her relationships with these three men from different social backgrounds, she must confront her own sincerity and face the harsh realities of life as a female servant. Will she be able to win over Georges and escape the clutches of the sinister Joseph in this poignant portrayal of the female servant experience? …