|Directed by||Lloyd Corrigan|
|Produced by||Robert Pressnel|
|Story by||William Pierce|
|Music by||Louis Forbes|
John P. Fulton
|Edited by||Otis Garrett|
|Distributed by||Universal Pictures|
The inventor of a burglar alarm (Karloff) attempts to get back at the man who stole the profits to his invention (Hinds) before he goes blind. The device is then subverted by gangsters (Baxter, et al.) who apply pressure to the inventor and use his device to facilitate burglaries.
- Boris Karloff - David Mallory (billed as KARLOFF)
- Warren Hull - Jimmy Travis (billed as J. Warren Hull)
- Jean Rogers - Joan Mallory
- Alan Baxter - "The Kid"
- Samuel S. Hinds - Stephen Ranger (billed as Samuel Hinds)
- Hobart Cavanaugh - "Petty Louie"
- David Oliver - "Mike"
- Ward Bond - "Fingers"
- Frank Reicher - Carl
- Edwin Maxwell - Kruger
Home video release
This DVD set contains the rerelease version of this film from Realart Pictures, Inc.. It also contains the rerelease version of the theatrical trailer
The packaging for this DVD set erroneously indicates that this film has a running time of 78 minutes.
- Stephen Jacobs, Boris Karloff: More Than a Monster, Tomahawk Press, 2011 pp. 209-212
- Tom Weaver, Michael Brunas and John Brunas, Universal Horrors: The Studio's Classic Films, 1931-46 Second Edition, McFarland, 2007 pp. 170-175
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