CBS Radio Mystery Theater - "The Train Stops" - August 23, 1976

The train used to stop at the small town of Dandridge. Now the town doctor relates a story about two strangers who only himself and his daughter have met. She tells her father that she has fallen in love with a man who stops in town daily on the 5:16 train. No one else has seen him and he continues to stop in, even when the train doesn't.