William Gibson's Neuromancer depicts a dark future where physical reality has blurred with virtual reality due to advanced technology. In this world, multinational corporations have replaced governments and exert vast power. The protagonist Case is a computer hacker who is hired by an artificial intelligence named Wintermute to complete a secret mission. Wintermute needs human help to merge with its brother system Neuromancer. The book establishes cyberpunk themes of technology dominating society, blurring the line between human and machine, and governments struggling to regulate increasingly powerful corporations and artificial intelligence.