Catherine, a troubled 25-year-old woman, has spent years caring for her brilliant but unstable father, a famous mathematician. Now, following his death, she must deal with her own volatile emotions, the arrival of her estranged sister, and the attentions of Hal, a former student of her fathers 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? Winner Tony Award for “Best Play” and Pulitzer Prize for Drama. Winner Tony Award for “Best Play” and Pulitzer Prize for Drama “…combines elements of mystery and surprise with old-fashioned storytelling to provide a compelling evening of theatre… smart and compassionate play of ideas.” New York Daily News. “A wonderfully funny, ambitiously constructed work…” -Variety