“Write what you know,” the saying goes. But when Bill Cain moves home to help his dying mother, he doesn’t have the words to capture the mystery of his own family. Amid doctor appointments and baseball games, he begins to see how seemingly ordinary details shape our lives. Support American Theatre: a just and thriving theatre ecology begins with information for all. Please join us in this mission by making a donation to our publisher, Theatre Communications Group. When you support American Theatre magazine and…