Adele is a lonely young teenage woman that has been sent to care for her aunt Dora, an agoraphobic who refuses to have any contact with Adele other than a series of messages and rules slid under her door. She seems to have an escape from this bleak existence after meeting Beth, a vibrant woman her own age and Adele's opposite in looks and personality. As they spend more time together Adele begins to adopt some of Beth's behaviors and mannerisms, however their friendship ends up leading to dark and twisted events.