The Gorilla 1939 comedy horror.

The Gorilla is a 1939 American horror comedy film starring the Ritz Brothers, Anita Louise, Art Miles, Lionel Atwill, Bela Lugosi, and Patsy Kelly. It was based on the 1925 play of the same name by Ralph Spence.
When a wealthy man (Lionel Atwill) is threatened by a killer known as The Gorilla, he hires the Ritz Brothers to investigate. A real escaped gorilla shows up at the mansion just as the investigators arrive. Patsy Kelly portrays a newly hired maid who wants to quit because the butler, played by Bela Lugosi, scares her.
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