Black Friday ★★½

"The movie certainly has one of the loopier premises of all of the Karloff-Lugosi films. After his University colleague and vaunted literary professor George Kingsley (Ridges) suffers a catastrophic head injury, Medical research scientist Dr. Ernest Sovac (Karloff) successfully transplants the brain of murderous thief Red Cannon (also Ridges) into his friend’s skull. Soon two very different personalities begin to vie for control of the body, and while one of them wants to return to his meek, mild-mannered lifestyle, the other will go to bloodcurdling lengths to resume his criminal ways."