"The Tell-Tale Heart" is a short story by Edgar Allan Poe that explores themes of guilt and madness. The narrator insists on their sanity while describing the murder of an old man, whom they claim to love. The narrator is disturbed by the old man's vulture-like eye, which drives them to commit the crime. After the murder, the narrator hides the body beneath the floorboards. However, they soon become haunted by the sound of the old man's beating heart, which grows louder in their mind. Overwhelmed by guilt, the narrator ultimately confesses to the crime, revealing the hidden body.