Susanna, an 18-year-old woman, is rushed to the hospital after a suspected suicide attempt. She is diagnosed with delusions and referred to a private mental hospital called Claymoore for treatment. Claymoore is described as noisy and full of "crazy people." Susanna befriends another patient, Lisa, who has a history of escapes. Lisa gains access to patient files and befriends Susanna. Susanna's boyfriend Toby is worried she has become too comfortable in the institution. Lisa and Susanna soon escape together.