Exuberant story of how Mother Riley gets caught up with maniacal scientist trying to get possession of map of uranium deposit. As in other films of the series, production relies primarily on Arthur Lucan's celebrated dame act with its well-tried slapstick, teamed in this case with the amusing melodramatics of Bela Lugosi. The comedy is largely a matter of Mother Riley's preposterous antics in the scientist's sinister house, complete with secret passages, sliding panels and towering robot...Reliable entertainment for Mother Riley fans.