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.

• Art Cinema Corporation
• Joseph M. Schenck Productions
• Chester Morris
• Chance Ward
• Una Merkel
• Richard Tucker
• Wilson Benge
• DeWitt Jennings
• Sidney D'Albrook
• S.E. Jennings