The inventor of a burglar alarm 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 who apply pressure to the inventor and use his device to facilitate burglaries.
Filming began on January 18, 1937, with a budget of $175,000. Filming ended on either February 16 or February 20, 6 days over schedule and $17,000 over budget.[1][2]
This was the last film in which Boris Karloff was billed by only his last name, a policy that Universal had begun with The Old Dark House in 1932 and had continued for eight films across six years during the height of Karloff's career.
