Psychologist Charles Marlowe (Christopher Lee) invents a drug which will release his patients' inhibitions-but when he tests it on himself he becomes cruel, immoral Edward Blake who descends into crime and eventually murder.
Psychologist Charles Marlowe (Christopher Lee) invents a drug. This drug will release his patients' inhibitions. He becomes cruel, immoral Edward Blake. This cruel, immoral Edward Blake descends into crime and eventually murder. He tests it on himself.