An unnamed narrator saids: "An analyst is driven paradoxically by both intuition and the moral inclination to disentangle what confuses his peers.The ingenious man may, at times, be analytic,but the calculating man is, without fail, always imaginative."
The narrator describes how he met a man named Duplin, while the were looking for the same book at an obscure library in the Rue Montmartre, in Paris, they became friends and decide to share the expenses of a residence.
The narrator talks about Duplins powers of analysis, by telling an anecdote where when they walked at night, Duplin could easily describe an actor whom the narrator was pondering.
Soon thereafter, the narrator and Dupin read newspaper headlines about a horrible murder in the Rue Morgue. Madame L’Espanaye and herdaughter, Mademoiselle Camille.
The news said that two policeman broke into Madame L'espaneye apartment and found a lot of evidence of the crime, including a blood-smeared razor, locks of gray human hair, bags of money, and an opened safe. And the body of Mademoiselle Camillle,dead in the chimney
The policeman police discover the body of Madame L’Espanaye in a courtyard in the rear of thebuilding. They find her badly beaten, with her throat severely cut. But her money was still in the apartment, so they discard robbery.