Maria has never gotten over her sister Isabella's death . . . and the guilt she feels about what happened. It hangs over everything she does, even an innocent slumber party with her two best friends. When one friend suggests they play a game that summons the spirits of the dead, Maria thinks it's all make-believe. But then she starts to hear from a spirit -- a spirit claiming to be her sister. Maria doesn't want to think it's possible. . . but the sinister spirit has a way of making her listen. Has her sister actually returned?