This film is a biography of John Forbes Nash Jr., a great mathematician of the 20th century. John Forbes-Nash Jr. (Russell Crowe) published the famous game theory when he was a graduate student. Although the theory is only 26 pages, it has had a far-reaching impact in the economic, military and other fields. But when John Forbes-Nash Jr. was internationally famous, his outstanding intuition was troubled by schizophrenia, but that didn't stop him from marching to the highest academic level. with the encouragement and help of his beloved wife Alicia (Jennifer Connery), he walked slowly, but never stopped, and in the end, with more than a decade of unremitting efforts and tenacious will, he got what he wanted.