

"Nerve-shattering terror!"
Under therapeutic hypnosis, a seemingly well-adjusted young woman tells a fantastic story, verified by lie detector, of her forgotten marriage to a man who disappeared on the day of their honeymoon, and of her search for him which takes her to a lonely mansion in a remote section of swampland tenanted by snakes, alligators, a drunken one-armed lout, a mysterious doctor, and a cold-hearted elderly woman who lives alone in a brooding manse.
Joyce Webster, aka Jane Marvin

Dr. Eric Lorimer

Manon

Dr. Mark Sinclair

Mrs. Lavinia Hawthorne

Paul Webster

Dr. Wayne McGregor

Patient 'Number Six' (uncredited)

Conductor

Porter

1st Male Nurse (uncredited)

Louann

Third Male Nurse (uncredited)
Alligator-headed Paul

Toby
2nd Male Nurse (uncredited)