Another bat film, plus a gorilla one for good measure.
The Bat (1959)
https://www.youtube.com/watch?v=td3OM8jbBJQ - from the Cult Cinema Classics YouTube chanel (1 hour 20 mins - 480p)
Synopsis:
A crazed killer known as “The Bat” is on the loose in a mansion full of people.
Directed by Crane Wilbur.
Cast: Vincent Price, Agnes Moorehead & Gavin Gordon.
Trivia:
The Bat was distributed in 1959 on a double bill with the British Hammer film The Mummy.
The Gorilla (1939)
https://www.youtube.com/watch?v=IP1xlXj76Mw - from the Cult Cinema Classics YouTube channel (1 hour 6 mins - 480p)
Synopsis:
When a wealthy man 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.
Directed by Allan Dwan.
Cast: The Ritz Brothers, Lionel Atwill & Bela Lugosi.
Trivia:
The death of the Ritz Brothers’ father caused production of the film in January to be delayed. Fox placed a $150,000 suit against the Ritz brothers for a breach of contract as the film was stated to start production on January 30, but was halted when the Ritz Brothers did not show up. By March, the film began shooting again with the Ritz brothers returning to the film. The Gorilla became the last film made for Fox by the Ritz brothers.