one flew over the cuckoo's nest 4

McMurphy choked Nurse Ratched so much that she couldn't talk anymore and needed to get surgery. Being that she couldn't talk she lost all power over the guys because her voice was her main power. Nurse Ratched sent McMurphy up to get a libotomy and it turned him into a vegetable. Then Chief Bromden smothers him at night and he dies. After that Bromden escapes and goes back with his cronies.