Five Fingers (1952)

Ulysses Diello works in Turkey for the British Ambassador as a personal valet, but tired of his lot in life, he decides to sell his employer's valuable intelligence to the highest bidder, which just happens to be the Nazis. Eventually he plans to retire a rich man in Brazil. Running photos of classified documents to his contact, the beautiful Countess Anna, Cicero finds himself falling in love with her, and as the story unfolds the two plan to go to Rio together. Eventually, the Nazis disregard the information that is smuggled to them because they consider it too outrageous. As a result, they are unprepared for the D-Day invasion.