Infamous burglar "The Bat" commits a daring jewelry theft despite heavy police presence. Soon after, a bank theft occurs, which may be the work of the criminal as well. Meanwhile, Cornelia Van Gorder has various people arrive at her old mansion, including her niece, Dale, a bank employee, and police detective Anderson. When guests start turning up dead, Cornelia begins to suspect that The Bat may be lurking around the estate.
Chester Morris
as Detective Anderson
Chance Ward
as Police lieutenant
Una Merkel
as Dale Van Gorder
Richard Tucker
as Mr. Bell
Wilson Benge
as The Butler
DeWitt Jennings
as Police Captain
Sidney D'Albrook
as Police Sergeant
S.E. Jennings
as Man in Black Mask
Grayce Hampton
as Miss Cornelia van Gorder
Maude Eburne
as Lizzie Allen
Spencer Charters
as The Caretaker
William Bakewell
as Brook
