I recently read two reviews of small performances of McCarthy's 2006 play Sunset Limited: A Novel in Dramatic Form.
In the first, Robert Hurwitt gives a mixed review of a performance in San Francisco, directed by Bill English:
Though the only violence in the 2006 play is either offstage or conceptual, bleakness is both the basis and governing principle of McCarthy's semi-philosophical dialogue for two old men. . . .
McCarthy could've filled out the characters' stories better, but the crisp crackle and humor of his dialogue keep the interchange sharp even when the ideas aren't very interesting. As embodied by Lumbly and Dean, the drama may be thin, but it exerts the urgency of life itself.
In the second, Andrea Braun gives a more positive reflection on a performance at Soundstage Theatre in St. Louis:
This play, like the soup Black serves White, is soul food for the body and potent fodder for the intellect. Coleman and Harvey have excellent chemistry, and they are in dangerous territory here for actors: They must relying only on their words to engage the audience. It works.Both reviews capture the ambiguity of this work, where all the action is all the dialogue.