The document is a short story titled "A Tell-Tale Heart" by Edgar Allan Poe. In less than 3 sentences: The story is narrated by a man who kills an old man he is caring for because he hates the old man's eye. He dismembers the body and hides it under the floorboards, but is ultimately undone by the sound of the old man's heart beating, which he imagines he can still hear. He confesses to the murder driven mad by his guilt and the sound of the beating heart.