Čierny Kocúr by Edgar Allan Poe

In this chilling tale, a man's descent into madness is chronicled through his relationship with a beloved pet cat. Initially affectionate, the protagonist's growing alcoholism and violent tendencies lead him to commit unspeakable acts against the animal, which in turn sets off a series of eerie and supernatural events. As guilt and paranoia consume him, his actions spiral further out of control, culminating in a horrifying climax that reveals the dark depths of his fractured psyche.