"Pozdnyshev" is a character from the novella "The Kreutzer Sonata," written by Leo Tolstoy. The story explores themes of love, jealousy, and the complexities of human relationships. Pozdnyshev, a middle-aged man, recounts his troubled marriage and the events that led to his wife's infidelity. The novella is named after the Beethoven sonata that plays a significant role in the narrative. Pozdnyshev's reflections on music, passion, and morality reveal his inner turmoil and the societal norms of his time. The work raises questions about the nature of love and the consequences of possessiveness.