When a 747 crashes shortly after take-off, the sole survivor is the pilot. Virtually unhurt, he and the investigators look for the answers to the disaster. Meanwhile mysterious deaths occur in the community and only a psychic, in touch with the supernatural, can help the pilot unravel the mystery surrounding the doomed plane.

Firearm heiress Sarah Winchester is convinced that she is haunted by the souls killed at the hands of the Winchester repeating rifle. After the sudden deaths of her husband and child, she throws herself into the construction of an enormous mansion designed to keep the evil spirits at bay. But when skeptical a San Francisco psychiatrist is dispatched to the estate to evaluate her state of mind, he discovers that her obsession may not be so insane after all.