Edgar Poe's work "Murders in the Rue Morgue" narrates about the event which has occurred in Paris one night. The main hero of work – August Dupin. The narration is led on behalf of the young man familiar with Dupin.
The story-teller, during the stay in Paris, meets the detective August Dupin.  They quickly become friends and lodge together. 
Once, they, reading the newspaper, see the message on a cruel crime.  In article it is said that at night on Morg Street awful murder is committed.  Madam L' by Espane and her daughter Camilla was killed.  All furniture in the apartment is broken, and in a flue Camilla's spoiled corpse is found.  Body of mother found in the yard, her head was cut off.  Witnesses said that heard voices of criminals.  The first, according to their indications, was the Frenchman, and on - an occasion of the second opinion dispersed.  Adolf Lebon who brought them on the eve of murder from bank 4 thousand francs from the account madam L' Espane was during the investigation arrested. 
Having studied all this history, Dupin gets permission to examine a place of murder and everything there carefully surveys. On these facts Dupin draws a conclusion that the crime was committed by a huge monkey. It advertises in that capture, promising to return it to the owner. In very fast time for the announcement one seaman responds. When he understands that the detective guesses everything, starts telling as everything occurred actually. It caught an orangutan on purpose favourably to sell in Paris. But that ran away. Dupin reports about it to the prefect, and in a false manner accused Lebon let out.