Gwyneth Paltrow was a math student, who dropped out to take care of her ailing father, the once brilliant mathematician Anthony Hopkins. In the last few years of his life he become deranged, suffering from dementia, and scribbled meaningless notes which he claimed to be his great work.

Hopkins' former student Jake Gyllenhaal goes through Hopkins' notes trying to find some meaning, while Paltrow starts a relationship with him. Paltrow's sister Hope Davis arrives for the funeral, and questions on Paltrow's mental state for having spent so many years in such company.

Paltrow gives Gyllenhaal a notebook from a secret drawer, which has some excellent work, proving one of the great hypotheses of the math world. Paltrow claims its her own work, but nobody believes her, and casts even more doubt on her mental state.

A slow moving movie, with scenes oscillating between the rambling Hopkins and the moping Paltrow. Quite predictable too, since it had only two possible endings, and it chose one. I was left wondering if there was a deeper meaning or an allegory to something, but didn't find any. So on the whole, quite pointless.