“What do we want these days from the theater? Increasingly, or so audiences as much as dictate, stories that come to a handy, even cozy conclusion, where life’s knots aren’t so much sentimentally unraveled as they are re- assembled in a nice, neat bow. So the London stage deserves credit this, and virtually every, season for proffering plays that take the harder, more circuitous path, leaving open-ended the fates of characters whom lesser writers would lead to the sort of preordained conclusion that leaves spectators happy but isn’t necessarily true to life.”