After being admitted to a psychiatric hospital, Randle McMurphy (Nicholson) immediately encounters a strict regime established by the head nurse. These restrictions, as well as interference in the personal lives of the patients during group therapy sessions, provoke protest from the new patient. He tries to reach out to other patients and convince them that things cannot continue this way, and makes several attempts to escape.
The film's success was sudden and unexpected for everyone, especially its creators. Suddenly it turned out that this was the kind of film everyone had been missing, and both mass audiences and the most discerning experts applauded it. Only Ken Kesey, the author of the novel on which the film was based, remained categorically dissatisfied. He didn't even watch it.
The film won the "Big Five" most prestigious Oscars (which happened for the second time in film history) and the "Big Five" Golden Globes (for the first time).
