In “The Tell-Tale Heart,” by Edgar Allen Poe, the narrator is displayed as a madman. The narrator appears to suffer from a madness called, monomania. Monomania can be defined as an obsession with a particular concept; in this case it is the old man’s “vulture eye.” The narrator is so preoccupied with the old man’s eye, that he can no longer function normally. He does/experiences things like, repetition of speech, delusion, hallucinations, loss of sleep, and mainly obsession. For example the narrator believes he can hear the old man’s heart beating when he is about to kill him and even after he is dead. He also believes that the police officers, who were investigating for foul play, can also hear the old man’s heart by stating “They heard!-they
