Brain surgeon Dr. Sovac saves his friend Professor Kingsley's life by transplanting part of injured gangster Red Cannon's brain, but the operation unleashes a disastrous dual personality effect. As Cannon's persona emerges, Sovac becomes torn between his medical ethics and the temptation of Cannon's hidden fortune.
Black Friday
A notorious gangster's brain is successfully transplanted into a professor's body, leading to a life-threatening struggle with a split personality.