A girl is locked in a room in an old, abandoned house. She has been hiding there for more than a hundred years. Another girl, Jules, arrives at the ruined house and sees a pale face in an upstairs window. Who is up there, she wonders, behind a locked door? Jules finds out that a young girl has been watching her from the window. Jules is fearful, then fascinated, then eager to befriend-and help-the captive, who is burdened by a chilling secret from the distant past.