A sound version of the play, following the same general story outline of the 1926 version, entitled The Bat. Despite advance warning to the police, who seal off the area, The Bat, a master criminal, steals a necklace from the safe in the house of a rich socialite. He leaves a note saying he is going to the country to give the police a rest. Pausing only to rob a bank at Oakdale, he proceeds to terrorise the occupants of a lonely country mansion, in a mixture of thrills, chills and laughs. At the end, an actor steps forward through a proscenium arch and asks the viewers not to reveal the Bat’s identity to their friends. A film noir shot in black and white, mainly at night in dimly lit scenes. More on Wikipedia
Watch The Bat Whispers (1930)