Abigail's Party at Harold Pinter Theatre review: A deeply enjoyable dinner party from hell

Has any actor, especially a glamorous former EastEnders star, embraced the grotesque on stage as admirably and wholeheartedly as Tamzin Outhwaite? After an utterly un-vain performance as the needy Kath in Entertaining Mr Sloane at the Young Vic last year, she now reprises her ghastly, egomaniac Beverley in Mike Leigh’s 1977 play.