Spy In Black, The (a.k.a. U-Boat 29) - (1939) - We'll Have To Take The Hearse

Brilliant bit by director Michael Powell, working for the first time with screenwriter Emeric Pressburger, teacher Anne (June Duprez) thinks her trip to Scotland is being saved by a wealthy traveler (Helen Haye) and her chauffeur (Valerie Hobson), who are really German spies, in The Spy In Black (a.k.a U-Boat 29), 1939.