But throughout the play’s lengthy running time, Morgan delivers the sort of brilliantly observed characterizations at which he excels. In Stuhlbarg’s wildly entertaining, outsized performance, Berezovsky emerges a man who deeply loves both his country and his extravagant lifestyle, complete with nubile young girlfriends and Caribbean fishing vacations. He becomes deeply outraged by his protégé’s betrayal, not only on personal terms but also because he sees that Putin is taking his country back to the past.