Under Secret Orders

Under Secret Orders, also known as Mademoiselle Doctor, is a 1937 British spy film directed by Edmond T. Grville and starring Erich von Stroheim, John Loder, Dita Parlo and Claire Luce. It is an Englishlanguage version of the French film Mademoiselle Docteur, also known as Salonique, nid despions, and released in the United States as Street of Shadows, which was filmed at the same time under the direction of G. W. Pabst. Both films have exactly the same plot, but there were differences in the cast between the two in particular, von Stroheim was not in the French version.

Source: Wikipedia