Non-stop chatterbox and mystifyingly revered fabricator of sub-Chekovian paddywhackery, Brian Friel has received another production at the Donmar. His play Aristocrats cadges shamelessly from Three Sisters and The Cherry Orchard. The setting is a crumbling mansion in Donegal occupied by four adult members of the O’Donnell clan (three girls, one boy), who idle around the place waiting for Dad to clock out so they can get their mitts on the bricks.