THE BROAD EMPIRICAL facts are not disputed. Four friends: Hannah Pittard, Andrew Ewell, Anna Shearer, Ryan Fox. Two marriages. Years ago, they fell in together in and around the world of postgrad creative writing at the University of Virginia in Charlottesville. There’s a photograph from back when things were still good, all of them huddled together on a couch in a pose of easy camaraderie: four artists only beginning to discover the ways ambition might reshape their lives. They all stayed friends until, in the first week of July 2016, Andrew, who was married to Hannah, slept with Anna, who was married to Ryan. A couple of weeks later, Hannah found out. Soon, both marriages were over.
It’s the kind of story—one of turmoil, epiphany, evolution, damage, hope, betrayal, rancor, joy—that,…