Three Faces East

During World War I, a soldier named Valdar receives a medal for bravery from the King of Belgium. Elsewhere, behind German lines, a captured British nurse is revealed to be a German spy. She is given an assignment to infiltrate the household of Sir Winston Chamberlain, the British First Lord of the Admiralty, and steal secrets for her superior, a German spy named Blecher. Under the name Frances Hawtree, the agent, using the code term "three faces east," discovers that Valdar, who has used his award to place himself as Chamberlain's head butler, is actually her contact, a German spy named Schiller.