I am generally quite critical of modern theatre: middle class, patronising, inauthentic, embarrassed. This one touched on race, insanity and philosophy, subjects where middle class self-congratulation is shrillest and most annoying. But it didn't annoy me, perhaps because almost everything that was said was ambiguous.
The writer Joe Penhall also wrote the scripts for Enduring Love and The Long Firm, and Cormac McCarthy's The Road which is due for release soon.