Marianna Edgewater finds a knife in the furnace room of an abandoned Georgia school building she bought to use as a studio for her interior design business. The knife terrifies her. She hears the voice of a girl murdered on the school grounds over thirty years ago. The voice insists her killer is still at large, but still isn't sure who it was, only that it wasn't the man who was convicted. Marianna begins having accidents as she questions...