After a booze-fuelled Halloween party on an East Coast college campus, Leda wakes up in Ian's room, unsure exactly what happened between them. Meanwhile, the young woman that Leda last spoke to upon leaving the party is now missing. As the campus rouses itself to respond to Charlotte's disappearance, rumours swirl, suspicious facts pile up, and Leda's obsession with her missing classmate grows. As Leda becomes more and more dangerously consumed with the mystery of Charlotte and questions about Ian, her motivations begin to blur. Is Leda looking for Charlotte, or trying to find herself?