The narrator was never had any problem with the old man and they got along quite well.
The narrator is bothered by the old mans big creepy eye.The eye bothers him so much to the point that he thinks of killing the old man.
The narrator watches the old man at midnight for a week before he kills him.Making sure not to wake him.
The narrator goes to the old mans room opens the door little by little till he can fit his head in.The old man wakes up not knowing what is happening.The narrator makes his move and kills the old man by suffocating him with the bed.The narrator makes sure not to leave any evidence.
The narrator hears a knock at the door and goes to open it and outside are two police officers.The police officers tell the narrator that one of the neighbors heard a scream and called the police.The narrator tells them that it was him who screamed because he was having a nightmare.The narrator tells the officers to come in and check the house if they wanted.
The police ask questions and the narrator answers their questions happily.The narrator starts to get tired of the officers and their questions.Then the narrator hears the heart beat of the old man.It starts to get louder and louder until he can't take it anymore.The narrator tells the police that he killed the old man and where his body is.