Fletcher's greatest success, "Sorry, Wrong Number", premiered on May 25, 1943, as an episode of the radio series "Suspense". Agnes Moorehead created the role in the first performance and again in several later radio productions. It was broadcast nationwide seven times between 1943 and 1948. Fletcher's daughter Dorothy Herrmann told "The New York Times" that Fletcher got the idea for "Sorry, Wrong Number" when she was buying food for her sick child at a local grocery on Manhattan's East Side, and a well-dressed woman with an obnoxious manner refused to allow Fletcher to go ahead of her in line. Herrmann described the drama as an "act of revenge".