The narrator of Edgar Allan Poe's "The Black Cat" gradually changes from a man of sane, congenial nature to a psychopathic man.
In the beginning of the story, the narrator seems quite genial in nature:
From my infancy I was noted for the docility and humanity of my disposition. My tenderness of heart was even so conspicuous as to make me the jest of my companions.
As a young man, the narrator marries young and finds a wife who makes him happy because she possesses a disposition "not uncongenial with my own." Because she notices how much her husband loves animals, she takes the opportunity to procure several pets for him. He prefers a large and "sagacious" black cat over the others, and Pluto, as he names it, becomes his favorite pet—even a playmate. For several years this cat follows him about the house.
But, when the narrator begins to drink, his disposition alters and he becomes impaired in empathy. While he remains rational, the narrator loses any affection for his pets; in fact, he is...
(The entire section contains 720 words.)