The novel's hero is Randle Patrick McMurphy, a boisterous, brawling, fun-loving rebel who swaggers into the world of a mental hospital and takes over. A lusty, life-affirming fighter, he rallies the other patients around him by challenging the dictatorship of Nurse Ratched. He promotes gambling in the ward, smuggles in wine and women, and openly defies the rules at every turn. But this defiance, which starts as a sport, soon develops into a grim struggle, an all-out war between two relentless opponents:Nurse Ratched, backed by the full power of authority, and McMurphy, who has only his own indomitable will. What happens when Nurse Ratched uses her ultimate weapon against McMurphy provides the story's shocking climax.