"Pickman's Model" by H.P. Lovecraft follows an artist named Richard Upton Pickman, whose terrifyingly realistic paintings disturb and fascinate the narrator. Set in the dark, mysterious neighborhoods of Boston, the story delves into the boundary between reality and nightmare, as Pickman's artwork reveals unsettling truths about the nature of his inspiration. The tale masterfully blends horror and suspense, leaving readers haunted by its chilling atmosphere.