Dominique Is Dead... Or Is She?

Wealthy Dominique Ballard (Jean Simmons; Spartacus) lives with her husband David (Cliff Robertson; Obsession, Man on a Swing) in Dominique's giant English estate. Emotionally fragile, Dominique is harassed, tormented, and eventually driven mad by David until one night she hangs herself, resulting in her entire fortune being left to her husband. But what at first seems like a clever inheritance scheme soon becomes a waking nightmare for David as Dominique's spirit is not at rest and has instead risen from the grave to haunt him and avenge her death. But is the evil presence that appears to be seeking vengeance from the afterlife actually David's dearly departed wife or is someone else attempting their own elaborate and deadly hoax? (Vinegar Syndrome)