Dr. Charles Marlowe (Christopher Lee) is on the verge of a medical breakthrough: He's devised a drug capable of releasing people's deepest inhibitions. But when the good doctor uses the drug on himself, he releases something else -- a horrifying alter ego named Mr. Blake. With each transformation, Blake becomes more powerful and hideous. Dr. Marlowe is caught in a deadly struggle with himself in this thriller co-starring Peter Cushing.

Also Recommended...