The Bat (1959)

The Bat (1959)
(info from Imdb)

Mystery writer Cornelia Van Gorder has rented a country house called "The Oaks", which not long ago had been the scene of some murders committed by a strange and violent criminal known as "The Bat".

Director: Crane Wilbur
Writers: Crane Wilbur (screen story), Mary Roberts Rinehart (play), Avery Hopwood (play)
Stars: Vincent Price, Agnes Moorehead, Gavin Gordon

Trivia
In a 1987 interview on Sinister Image (1987), Vincent Price revealed that the stage version had terrified him as a child. He accepted the film role in because he thought the filmmakers "would revive it and bring it up to date", but he was disappointed with the final result because "It wasn't a good script."

Goofs
When Cornelia is trapped in the hidden room, she runs out of oxygen far too quickly. The room is large enough to have plenty of air, especially with the others searching the house for her.

Quotes
Dr. Malcolm Wells: In my report I shall state that death was caused by a stunning blow followed by severe laceration and hemorrhage.

Lt. Andy Anderson: In plain English, he didn't know what hit him.

Dr. Malcolm Wells: Oh he knew, but he didn't have time to think about it.

Connections
Edited into The Our Gang Story (1994)