Set in England in 1872, the story concerned a prominent, knighted surgeon whose wife has fallen into a coma caused by a deep-seated brain tumor. Due to medicine's state of the art at the time, he does not know how to reach the tumor without risking brain damage or death to the woman he loves, so he undertakes to secretly experiment on the brains of living, but involuntary, human subjects who are under the influence of a powerful Indian anesthetic, Nind Andhera, which he calls the "Black Sleep". Once he has finished his experiment, surviving subjects are revived and placed, in seriously degenerated and mutilated states, in a hidden cellar in the gloomy, abandoned country abbey where he conducts his experiments.
Cast
Basil Rathbone as Sir Joel Cadman
Akim Tamiroff as Udu the Gypsy
Herbert Rudley as Dr. Gordon Ramsay
Patricia Blake as Laurie Munroe
Phyllis Stanley as Daphnae
Lon Chaney Jr. as Dr. Munroe aka Mungo
John Carradine as "Bohemund"
Bela Lugosi as Casimir
Tor Johnson as Mr. Curry
George Sawaya as Sailor Subject
Sally Yarnell as Female Subject
Peter Gordon as Det. Sgt. Steele
Claire Carleton as Carmoda Daily
John Sheffield as Det. Redford
Clive Morgan as Roundsman Blevins
Louanna Gardner as Angelina Cadman
Aubrey Schenck as Prison Coroner's Aide
Release
Produced during 1955, the film was released to theaters in the early summer of 1956. This was just ahead of the TV syndication, through Screen Gems, of two decades of Universal monster movies, under the package title Shock Theater. Writer Higgins, director LeBorg, and stars Rathbone, Chaney, Carradine, and Lugosi had all been significantly associated with Universal horror films or related B movies. The Black Sleep is similar to Universal's two "houseful" of monster films released in the mid-40s, House of Frankenstein and House of Dracula, only relying on a completely new cadre of human monsters.
Critical reception
Amongst contemporary reviews, Variety wrote that the film "plays the horror tale fairly straight so what's happening is not too illogical until the finale wrapup, when all restraint comes off and the melodramatics run amok....Basil Rathbone is quite credible as the surgeon, enough so that the brain operations he performs will horrify many viewers"; and The Motion Picture Exhibitor noted that "Rathbone has a grand time as the mad scientist, assisted nobly by some of the best names in the horror field. Audiences should be frightened plenty, and past experience proves that this can mean good grosses... Sure, a lot of it is corny, but it is all good fun in a grisly, frightening manner."
Home media
The Black Sleep was released by Kino on Blu ray in 2016 and contains audio commentary by Tom Weaver and David Schecter.