The shriek was mine in a dream and the old man is out of the country.
Villains! Dissemble no more! I admit the deed!- tear up the planks!- here. here!- it is the beating of his hideous heart!
The narrator decides to kill the old man. He puts his heavy bed over him and kills him. Then he takes precautions in getting rid of the body.
At 4 a.m. the police arrive, who had been sent to search the premises of the shriek heard by a neighbor. The narrator lies to the police by saying that the shriek the neighbor heard was his own in a dream and that the old man was out of the country.
The narrator starts hearing a low, dull, quick sound that starts increasing rapidly. The narrator says it was the old man's heartbeat. He starts having a headache and can't keep up with the sound, and felt that he needed to scream. Finally, he confesses to the police and takes out the old man's beating heart.