The Gorilla 1939
Plot: A lawyer and his private detectives investigate a series of murders committed by a mysterious killer named "The Gorilla." The investigators are brought in by the wealthy Raymond Tyson, who has received a death threat from the killer. As the detectives and the lawyer work to solve the case, a real gorilla escapes from a nearby circus and terrorizes the house, making it difficult to tell the real killer from the escaped ape.
