Night Key (Universal) refreshingly presents famed Bogeyman Boris Karloff as a gaunt, lovable genius at electrical gadgets. Much of the picture's suspense comes from the expectation that he will suddenly revert to monster type. He never does, though he has plenty of provocation.
Nearly blind and dirt-poor, Inventor Dave Mallory (Karloff) devises a burglar alarm worked by electric eyes. He goes to sell it to Steve Ranger (Samuel Hinds), prosperous president of the Ranger System of burglar alarms, which uses wires. In his youth Dave Mallory invented that system too, but Ranger...