An aging hypnotist creates a device that allows the user to control the mind of another person, but his wife abuses its power by manipulating a younger man to commit evil acts.
Acting
Karloff's weary dignity against Lacey's delicious malevolence.
Direction
Reeves' final film before his tragic early death.
Cinematography
Psychedelic mind-meld sequences that aged strangely well.
Director
Michael Reeves
Trivia, insights & behind the scenes
This was Michael Reeves's third and final film; he died of an accidental overdose at age 25, just as his reputation was growing.
The film's 'swinging London' setting and psychedelic visuals were meant to capitalize on 1967 youth culture, creating an uneasy collision of generational liberation and old-school Gothic horror.
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