Things that are intangible are difficult to prove: sanity, love, and faith. Explore themes of legacy and loss in this Pulitzer- and Tony Award-winning play. Brilliant but prickly Catherine grapples with the death of her respected but unstable father. Support American Theatre: a just and thriving theatre ecology begins with information for all. Please join us in this mission by joining TCG, which entitles you to copies of our quarterly print magazine and helps support a long legacy of quality nonprofit arts journalism.