Edgar Allan Poe's 'The Tell-Tale Heart', like many of Poe's other stories, uses the device of a self-confessedly nervous and hypersensitive narrator. The actual action of the story takes places after the murder, when the narrator is recounting the story of what happened in order to prove his own sanity. The suspense is primarily psychological -- with the horror being as much the narrator's deterioration as the murder. At the end of the narrator's account, we find out that the narrator thought that the heart of a dismembered body was beating and confessed to his crime in horror. Since there is no way that the heart could have been beating, we conclude that the narrator himself is insane, and look back through the narrative for early evidence of that insanity and unrealiable narration.
What is the resolution of the tell-tale heart story