 <unk> following a birthday party in disarray are common , particularly in plays , and an episode with a similar theme was also included in the first series of Inside No. 9 . " Nana 's Party " revolves around the relatively mundane problems of alcoholism , affairs and aging . Class is another theme , with Angela , Jim and Katie representing a typical middle class family , while Maggie , Carol and Pat are more working class . David Chater , writing for The Times , said that " Nana 's Party " was like " a more twisted version " of Abigail 's Party , with several critics likening the episode to a Mike Leigh drama . Critics also saw the influence of Ayckbourn 's work . 
