A woman mourns the death of her father, a brilliant professor whose genius deteriorated as he slid into dementia. Afraid of sharing his fate, she shies away from human contact - until one of his former students uncovers an unknown mathematical theorem that will have ramifications for both their futures. Drama, with Gwyneth Paltrow, Anthony Hopkins, Jake Gyllenhaal and Hope Davis.

Catherine is a woman in her late twenties who is strongly devoted to her father, Robert, a brilliant and well-known mathematician whose grip on reality is beginning to slip away. As Robert descends into madness, Catherine begins to wonder if she may have inherited her father's mental illness along with his mathematical genius.