Madame Spy is a 1934 American adventure film directed by Karl Freund and starring Fay Wray, Oscar Apfel, Edward Arnold and Nils Asther. The film was produced and distributed by Universal Pictures. It is a remake of the 1932 film Under False Flag which was produced by Deutsche Universal, the German subsidiary of the studio, and was itself based on a novel of the same title by Max W. Kimmich.
Maria is married to Captain Franck of German Intelligence. He does not know she is a Russian assigned to spy on him. When he is told to uncover a leak, he vows revenge on his wife.