A Woman of Experience

A Woman of Experience is a 1931 American PreCode drama film starring Helen Twelvetrees, William Bakewell and Lew Cody, based on the play The Registered Woman by John Farrow. During World War I, a woman is rejected for volunteer work because of her dubious reputation, but that same reputation gets her recruited as a spy for Austria.

On her way home, she is nearly run down by a horsedrawn cab. Its passenger, SubLeutnant Count Karl Runyi of the Royal Navy, is very apologetic and insists on seeing her home. They become strongly attracted to each other, and see each other every night. Schmidt reprimands Elsa, but she refuses to give Karl up and turn her attention to von Lichstein.Karl had been frustrated at being assigned to an admirals staff, far from the fighting, but when the opportunity he had been hoping for finally becomes available, he chooses not to volunteer for a dangerous assignment running a blockade with three submarines because of Elsa. She, however, persuades him to change his mind, telling him that he would come to hate her if he did not seize his chance at glory. She sends him a letter, which he reads after sailing in it, she lies and tells him that she has found someone else. ........

Source: Wikipedia