Proof

Having spent years caring for her brilliant but unstable father, Catherine must deal with his recent death, her own volatile emotions, the arrival of her estranged sister, and a former student of her father's who hopes to find valuable work in the 103 notebooks that her father left behind. Over the long weekend that follows, a burgeoning romance and the discovery of a mysterious notebook draw Catherine into the most difficult problem of all: How much of her father's madness - or genius - will she inherit? PROOF is the winner of the 2001 Pulitzer Prize and Tony Award for Best Play.