Quite enjoyable Cold War comedy with Mason a Royal Navy submarine officer who comes up with a scheme to woo Vera Miles away from rich, dull toff Sanders. He will pretend to steal some top secret naval plans and sell them to the Soviets, then fake a shipwreck and maroon himself. When he is rescued, he'll sue the press for libel for labeling him a traitor. Things don't quite work out that way, though...
Mason's character is certainly based on real life Admiral Sir Max Horton, a famed submariner of World War One. A variety of older character actors are listed as playing club members, but whatever scene they were in must have been cut.
Thanks to Philly and Gerald Lovell for helping identify some extras!