"Ilyas Bazna works as a butler in the British Embassy in Turkey during WW2. After Bazna starts to work as a German spy he is going to experience a series of unexpected events." These are pretty interesting movies of a topic I was ignorant too. Check them both out below and see what you think.
Pretty good flick,
Brian & Mel
This story was also made into a tv series. I couldn't find anything but the intro so check it out below.
The book by Moyzisch in which the movie was taken.