Demons, also known as The Possessed, is Dostoevsky's exploration of political radicalism and moral decay in 19th-century Russia. The novel portrays a provincial town's descent into chaos as revolutionary ideologies take hold, leading to violence and existential crises. Through complex characters and philosophical dialogues, Dostoevsky examines the dangers of nihilism and the struggle between faith and reason, crafting a narrative that is both profound and unsettling.