Playing on: VidPlay

Proof (2005)
The daughter of a brilliant but mentally disturbed mathematician, recently deceased, tries to come to grips with her possible inheritance: his insanity. Complicating matters are one of her father's ex-students, who wants to search through his papers, and her estranged sister, who shows up to help settle his affairs.
Released: 2005
Duration: 1h 40m
Director:
John Madden