The Spy (2013)

Vera von Schalburg is a German prostitute working in Nazi Germany. In 1938, one year before the outbreak of World War II, Schalburg is arrested by the Berlin police. She is offered to work as a spy for the Abwehr, the German military intelligence service, instead of facing jail time. Completely unaware of the secret war preparations being conducted by her government, and unwilling to leave her teenage son who later joins the Hitler Youth, she accepts the offer.