Depois que um ataque a cegou, Ellen Ashland se retirou do mundo para se recuperar. Mas ela logo afunda na paranóia, incapaz de convencer ninguém de que seu agressor voltou para aterrorizá-la, escondendo-se à vista de todos.

Nicole Turner has seen better times. Having just survived a health scare and painful breakup with her boyfriend Kyle, she is now facing eviction. When she finds a room for rent with former doctor Julie Thomason, she also discovers a new best friend. But Nicole doesn't realize how far Julie will go to control this friendship and keep her from ever leaving.