Resumen: Misery, one of Stephen King’s most acclaimed novels, is a work that gives up many of the usual traits of his author in order to build an equally frightening story. Settled in an isolated landscape like a cabin in the Rocky Mountains, and with a plot developed around two characters and a single room, the horror of his narrative is built through the characters themselves rather than through external circumstances. Due to the absence of supernatural elements, this psychological horror work adopts a verisimilar and realist tone, in which elements such as madness or changes in the state of the protagonist’s mind influence the narrative. This paper aims to demonstrate how the narrative emphasizes the subjectivity of Paul Sheldon, a writer hijacked by his “number one fan”, and how he projects his fears and thoughts in the novel through various metaphors with a cathartic purpose, to the point that he is unable to obtain his freedom until he has not confronted his own demons.