This film is a 1950s updating of Val Lewton's CAT PEOPLE. In this adaptation, Barbary Shelley's character of Lenora inherits the family curse of turning into a wild animal at night and controlling the killing nature of a leopard on the loose. While this is not in the same league CAT PEOPLE, it is nonetheless a nice low budget effort with great atmosphere, good suspense and a decent leading performance from Shelley in the werewolf-like role. I was slightly disappointed however by Robert Ayres rather stiff performance as Dr. Brain Marlowe.