The line between genius and madness can be razor thin. At least that’s Catherine’s fear. An untrained prodigy, she’s inherited her mathematician father’s brilliance, and, quite possibly, his madness. Now, with her emotional safe haven gone, Catherine is forced to come face to face with her own genius. In the process, she makes a stunning revelation that could quite literally turn the world upside down. Winner of the Tony Award for Best Play and the Pulitzer Prize, David Auburn’s Proof is that rarest of gems — a play that is elegant and eloquent, greatly entertaining and thoroughly engrossing.