Husband hires spy to follow his wife. The spy follows faithful wife. Wife notices she's being followed and enjoys the spy's company. They go to the movies, museum and never talk.The spy and wife fall in love. The spy tells the husband there is another man in her life, but doesn't admit it's him. Movie set around 60s or early 70s IIRC, but not certain. Spy wears tan or white trench coat.
closed as off-topic by TylerShads♦ Sep 1 '13 at 3:51
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