On the night of Pluto’s hanging, the narrator’s family’s house burns down, but he dismisses the possibility of a connection between the two events. The day after the fire, which destroys all the narrator’s possessions, he witnesses a group of neighbors collected around a wall that remains standing. Investigating their shouts of amazement, the narrator discovers the impression of a gigantic cat—with a rope around its neck—on the surface of the wall. The narrator attempts to explain rationally the existence of the impression, but he finds himself haunted by this phantasm over the course of many months. One night, while out drunk, the narrator discovers a black object poised upon a large barrel of alcohol. A new black cat has appeared, resembling Pluto but with a splash of white on his fur. 

As with Pluto, the narrator experiences a great fondness for the mysterious cat, which no one has seen before. The cat becomes part of the household, much adored by his wife as well. However, following the earlier pattern, the narrator soon cannot resist feelings of hatred for the cat. These murderous sentiments intensify when the narrator discovers that the cat’s splash of white fur has mysteriously taken on the shape of the gallows, the structure on which a hanging takes place. The white fur reveals the mode of execution that claimed Pluto, and the narrator pledges revenge.