The Alligator People 1959

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.

Cast:

Beverly Garland
Joyce Webster, aka Jane Marvin 

Bruce Bennett
Dr. Eric Lorimer 

Lon Chaney Jr.
Manon 

George Macready
Dr. Mark Sinclair 

Frieda Inescort
Mrs. Lavinia Hawthorne 

Richard Crane
Paul Webster