Widely considered the very first detective story in modern literature, the plot centers on a horrifying and seemingly impossible double murder in Paris. Madame L’Espanaye and her daughter, Camille, are brutally killed in a sealed room on the fourth floor of a house on the Rue Morgue. Neighbours report hearing two distinct voices—one speaking French and the other an unrecognizable, harsh tongue—yet the room was locked from the inside, leaving no clear escape route or motive.

Confused by the bizarre evidence and conflicting testimonies, the Parisian police hit a complete dead end. The eccentric, brilliant analytical detective C. Auguste Dupin steps in to solve the crime. Using his sharp powers of observation and pure logical deduction, Dupin dissects the crime scene, cutting through the sensationalism to reveal an unthinkable truth.