Norman (HARRISON FORD) and Claire Spencer (MICHELLE PFEIFFER) are a seemingly happily married couple who've just sent their only daughter, Caitlin (KATHARINE TOWNE), off to college. Living in the picturesque New England lake home once owned by his later father, Norman is running an important and time consuming research project at the local university while Claire remembers her past as a cellist and an automobile accident from nearly one year earlier that's left her somewhat skittish and highly emotional.
That comes into play when she begins to think that her new next-door neighbors, Warren (JAMES REMAR) and Mary Feur (MIRANDA OTTO) are having major marital problems and then begins to suspect that the husband may have killed the wife after she suddenly disappears. When Norman questions those conclusions and she begins experiencing weird and seemingly supernatural phenomena in their home, Claire worries that she may be going crazy.
A visit to psychiatrist Dr. Drayton (JOE MORTON) doesn't help, while Claire's best friend, Jody (DIANA SCARWID), thinks she's blowing everything out of proportion, but does participate in a Ouija board experiment and leaves her a book on witchcraft and spells just in case. As the creepy phenomena continue to occur, Claire begins to believe that their house is haunted, possibly by a young woman, Madison Elizabeth Frank (AMBER VALLETTA), who's been missing for around one year.
Despite sensing that no one believes her, Claire begins digging deeper for clues and information about the apparition's identity and possible cause of her demise, a search that will soon unearth far more than what she bargained for.