Catherine is a dutiful daughter who’s put her own life on hold in order to care for her father, Robert, a brilliant mathematician whose genius has been overshadowed by mental illness. Catherine shares her father’s passion for theoretical math, but fears that she may also share his mental instability. Following Robert’s death, one of his former graduate students discovers a paradigm-shifting proof about prime numbers in Robert’s desk. No one believes that the work could be Catherine’s. Now she must struggle to prove the authenticity and authorship of the proof, as well as her own sanity. The winner of every major award for drama, Proof plumbs the depths of the mind and heart.