Meg Wolitzer presents a show of stories about replacements and stand-ins. While we tend to crave the original, sometimes a substitute can bring more happiness. In Steve Almond’s “A Happy Dream,” read by Phil LaMarr, a young man assumes a new identity in pursuit of love. In “A Brief Note on the Translation of Winter Women, Written by the Collective Dead, Translated by Amal Ruth,” a writer speaks for those who have passed. The “real” author is Rivers Solomon, and the reader is TL Thompson. In “Saying Goodbye to Yang,” by Alexander Weinstein a robot child and its human family learn about love all at once. The reader is Tony Hale.