Elizabeth Bishop and Robert Lowell were two of America's most brilliant poets. Throughout their lifetime, they wrote over 400 letters to each other; spanning decades, continents, political eras. Their connection was messy and profound, platonic yet romantic, intense and intangible. A love that resists easy definition. These are their words. Susan Smith Blackburn award winner Sarah Ruhl has crafted a stunning and quietly bold piece of theatre about what it means to love someone, and all the questions we regret never asking.