British writer Laura Wade’s 2010 satirical drama Posh doesn’t tell you much you don’t already know about England’s upper crust and the greased rail that speeds the sons of pedigreed families from schools such as Eton and Harrow to the dreaming spires of Oxford and Cambridge, and from there into the corridors of corporate and government power.

What makes Posh feel fresh, however, is Wade’s insight into a culture of grievance incubated during the years of the Blair Labour government, and the fragility of upper-class male egos. It also speaks to the ways in which personalities, behaviours and world views are forged in the matrix of exclusive all-boys boarding schools.

Posh at Old Fitzroy Theatre. Photo @ Robert Catto

The play drops us into a meeting of an Oxford University dining group, “The Riot Club” (a thinly disguised version of the notorious Bullingdon Club, whose alumni include Tory PMs David Cameron and Boris Johnson), as it prepares for a comeback event.

Thanks to a media furore caused by a previous dinner, the chaps have been banished to premises beyond the city. A village gastropub will have to suffice. Worse still, they have...