"The Bat" is a mystery film directed by Crane Wilbur. The film's tagline was "When it flies, someone dies!" The film was based on the 1920 Broadway play "The Bat by Avery Hopwood" and Mary Roberts "Rinehart", which was previously filmed as "The Bat" (1926) and as "The Bat Whispers" (1930), both directed by Roland West.