- HD 1080
- Runtime: 65m.
- Status: Released
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- Languages: en
- Country: United States of America
- Director: Joseph V. Mascelli
- Stars: Marjorie Eaton, Frank Gerstle, Frank Fowler, Erika Peters, Judy Bamber
- keywords: experiment, transplantation, cat, mad scientist, murder, grave robbing, brain transplant
- Production_studio: Cinema Ventures Inc., Emerson Film Enterprises
- Slogan: WANTED: Youth and Beauty. Will Pay Millions. Only Beautiful and Shapely Girls Need Apply. No References Required. Appointments After Dark Only.
- providers: Amazon Prime Video, fuboTV, Epix Amazon Channel, MGM Plus Roku Premium Channel, MGM Plus, Night Flight Plus, IndieFlix, Cultpix, Amazon Prime Video with Ads
- The Monstrosity is featured in the top rankings of 1963
- #29 in Top Horror Movies of 1963
A rich but unscrupulous old woman plots with a scientist to have her brain implanted in the skull of a sexy young woman.
