But do not fear. This is not the kind of play to abandon you in a dark alley, even if Cephus’s distaste for city life is the most compelling and counterintuitive part of the story. Plot machinations that you will see coming at quite some distance deliver a happy ending and may even elicit a few nonconsensual tears. No matter: They cleanse the soul just the same. Williams, who died a few days before this revival’s first preview, seems to have been willing to go anywhere to free his hero from despair as a way of freeing the rest of us, too.