Secret Lives (1937)
A German-born woman works as a spy for the French in Switzerland during the First World War, and has to marry an interned French lieutenant in order to be able to stay in the country.
Directed by: Edmond T. Gréville
Starring: Neil Hamilton, Brigitte Horney, Gyles Isham, Ivor Barnard, Charles Carson, Raymond Lovell
Links: IMDb, Movie posters, Movie stills