One Flew Over The Cuckoo's Nest The movie, One Flew Over the Cuckoo's Nest, tells the story of McMurphy, a convict, who is sent to a mental institution because he believes he is insane. In actuality McMurphy, is sane when he comes to the mental ward, he only wants to get out of the work that jail time entails. It is believed that his stay in the mental ward is what drives the man insane. While in the mental ward, he interacts with the patients of his ward and ends up changing their worlds completely. When two different societies are combin ....