A Beautiful Mind is based on the true story of John Nash, a brilliantly intelligent but awkwardly anti-social mathematician. After studying at Princeton University and making an astonishing mathematical discovery, John (Russell Crowe) gains a prestigious role at Massachusetts Institute of Technology where he meets his wife Alicia (Jennifer Connelly). John is later invited to join the US Department of Defense to work on a top secret mission. After becoming increasingly paranoid and behaving erratically, he is forcibly sedated and admitted to a psychiatric facility where he is diagnosed with schizophrenia. But is he suffering from a mental illness, or has his work with the Department of Defense been uncovered and this is a ploy to capture him?