Plexus is the second volume of Henry Miller's semi-autobiographical trilogy, The Rosy Crucifixion. It continues the narrative of Miller's alter ego, Van Norden, exploring his struggles as a writer in Brooklyn, his tumultuous relationship with his wife Mona (June Miller), and his philosophical musings on art, love, and freedom. The book delves into themes of artistic creation, the bohemian lifestyle of early 20th-century New York, and the intense emotional and intellectual journeys that shaped Miller's distinctive literary voice. It's a raw, unconventional, and deeply personal exploration of a writer's life and his relentless pursuit of self-expression.