The narrator is introduced as a man who lives with an older man with a glossy blue eye that scares the narrator. He wishes to prove his sanity to the readers despite wanting to kill a man over his eye. "For it was not the old man who vexed me, but his Evil Eye" So the eye of the old man, drove the narrator crazy.
The narrator begins to think about killing the old man he lives with. Gradually he becomes obsessed with his desire to kill him although he doesn't really understand why he wants to do so. He keeps spying on the old man while he is asleep. Eventully in the eighth night he kills the old man. He tells the readers "I made up my mind to take the life of the old man, and thus rid myself of the eye forever."
The narrator hides the corpse of the dead man under his floor and hears the cops at the door. He states "I then replaced the boards so cleverly, so cunningly, that no human eye --not even his --could have detected any thing wrong. There was nothing to wash out --no stain of any kind --no blood-spot whatever."
I know I am not crazy but I can hear heaven and hell!
The narrator "hears" the old man's heart beating, although he has just killed him. The police are talking to the narrator, and he hears the beating of the dead man's heart getting louder and louder. It drives the narrator crazy to where he says "I could bear those hypocritical smiles no longer! I felt that I must scream or die! and now --again! --hark! louder! louder! louder! louder!"
The heartbeat of the man that is dead has gotton so loud that the narrator cant take it anymore so he confesses ans says he killied the man by telling the cops "dissemble no more! I admit the deed! --tear up the planks! here, here! --It is the beating of his hideous heart!"
Fine I commited the crime!
When the narrator says that he is not crazy but he can still here things from heaven and hell, we dont know if he is trustworthy. This is bcause it is really impossible to hear something like that and when he states "I heard all things in the heaven and in the earth. I heard many things in hell" you do not know what to believe.