@fbd8d4b4 >plagued by it, and that he is mad. The story has answered the question it set out to address, and the central enigma is the beating of the heart the man wrestles with, ultimately losing the fight with his guilt to reveal his crime, resolving the enigma (for the reader, at least).

Sorry, I went on a bit here. I hope it's helpful. Once I started thinking about short stories in this way I got a lot better at actually selling the stories I wrote.