Twelve-year-old Anais is fat. Her sister, Elena, is a teenage beauty. While on vacation with their parents, Anais tags along with Elena as she explores the dreary seaside town. Elena meets Fernando, an Italian law student, who seduces her with promises of love, and the ever-watchful Anais bears witness to the corruption of her sister's innocence. Precise and uncompromising, Catherine Breilat's FAT GIRL is a bold dissection of sibling rivalry and female adolescent sexuality from one of contemporary cinema's most controversial directors.