The narrator claims he's not crazy. The narrator lives in the old man's house. The old man had always been good to him. The narrator just hates the old man's eye because it looks like a vulture eye, is pale blue, and has film all over it.
The narrator feels like the eye has vexed him and cannot take it any longer. He makes a plan to kill the old man. He was nice to him in the week before he killed him. Every night, the narrator would go into the old man's room so slowly and quietly, taking an hour to stick his whole head in.
Every night, the narrator was ready to kill the old man. There was just one small problem; the old man's eyes were not open. If the narrator could not see the eye, he did not feel the need to kill the old man.
When the narrator goes to turn on his lantern, the old man wakes up and screams. The narrator rushes to the old man and pulls him to the ground. He suffocates the old man with his mattress.
The narrator dismembered the old man's corpse. He cut off his head, arms, and legs over a tub. He then placed the body underneath the floor boards so that nobody would ever find out.
Three police officers show up and say they got a report from a neighbor who heard a scream. The narrator told them that the old man was out of town and the scream was from him having a bad dream. He let them search the whole house but when they got to the old man's room, the narrator started hearing things. He finally broke and told the police officers that he killed the old man.