As Fernanda (Rooney Mara) enters her senior year at Tanner Hall-a sheltered boarding school in New England-she's faced with unexpected changes in her group of friends when a childhood acquaintance, the charismatic yet manipulative trouble-maker Victoria (Georgia King), appears. Shy and studious, Fernanda is usually the voice of reason among her friends-adventurous and sexy Kate (Brie Larsen) and tomboy Lucasta (Amy Ferguson)-but when she begins a...