In an opulent mansion in early 20th-century France, we meet a young maid named Celestine, who finds herself trapped between her life of servitude and a world full of temptations. The story begins when she starts working in the home of a wealthy family, where her desires and ambitions begin to awaken. Life here is not what it seems; behind the appearances of wealth and respect lie dark secrets and complicated relationships.
Celestine, a strong and determined woman, quickly befriends the cook and becomes a witness to the intrigues that unfold among the family members. Her closeness to the family's son, a handsome yet troubled young man, triggers a series of events that challenge the social norms of the time. In her quest for love and freedom, Celestine faces difficult choices, increasingly feeling the pressure of her surroundings and her own aspirations.
Set against a backdrop of class tensions, the film reveals how the struggle for a better life can lead a young woman down unexpected and dangerous paths. As secrets come to light, Celestine must decide whether to follow society's expectations or take control of her own destiny, defying the established order and embracing her true identity. With touches of romance, drama, and social critique, Celestine's story resonates through time, exploring the universal dilemmas of life and love.