Black Friday (1940 film)

Plot

The famous Dr. Ernest Sovac's best friend, bookish college professor George Kingsley, is run down while crossing a street. In order to save his friend's life, Sovac implants part of another man's brain into the professor's. Unfortunately, the other man was a gangster who was involved in the accident. The professor recovers but at times behaves like the gangster, and his whole personality changes. Sovac is horrified but also intrigued, because the gangster has hidden $500,000 somewhere in the city. The doctor continues to treat his friend and, when the professor is under the influence of the gangster's brain, Sovac attempts to have the man lead him to the fortune. Béla Lugosi plays a gangster also trying to get his hands on the cash.

Cast

Production

The original script cast Lugosi as the doctor and Karloff as the professor. For unknown reasons, Karloff insisted on playing the doctor. Rather than a straight switch though, Lugosi was given the minor role of a rival gangster, while character actor Stanley Ridges was brought in to play the professor.

The film provided a rare opportunity for Ridges.