House on Haunted Hill
Dr. Trent (Alan Marshal) and Annabelle Loren (Carol Ohmart) are having an affair. They staged her "hanging" and the other "supernatural" events in order to drive Nora (Carolyn Craig) into such a panic that Nora would kill Frederick Loren (Vincent Price) for them. Frederick, however, has figured out their plan, and manages to turn the tables on the lovers, killing them both.
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