Overview
Allied spies and Nazi Agents insinuate themselves at a Scottish cottage (converted to a wartime hospital) with interests on an inventor's nearly perfected bomb sight.
Cast & Crew
Director: Anthony Asquith
Cast: Leslie Banks, Jeanne De Casalis, Carla Lehmann, Alastair Sim, John Mills, George Cole, Michael Wilding, Frank Cellier, Muriel Aked, Wally Patch, Muriel George, Hay Petrie
