The Theater Within prides itself on putting on shows that challenge audiences with the toughest issues of the day, provoking their mental engagement in the performance and their own internal reflections on the state of society and the individual. David Auburn's Proof, the winner of the 2001 Pulitzer Prize for Drama and the 2001 Tony Award for Best Play, explores themes of madness, genius, and love with the story of Catherine, whose father is a famed but unstable mathematician. When her father dies, Catherine is plunged into her own maelstrom of emotions as her estranged sister arrives, as well as a former student of her father's who has interest in the late mathematician's 103 notebooks. As Catherine deals with these outside forces, she also struggles with her own concerns that she'll follow in her father's mental footsteps. Each of The Theater Within's performances of Proof are followed by a forum with the show's cast, the theater's artistic director, and the audience on the issues touched upon in the play.