The food is always dreadful ( cornflakes, fried bread and iffy milk) but the games at this party have proved constantly entertaining.
They were first played to indifferent, even hostile, receptions back in 1958. Since then, Harold Pinter?s so-called Comedies of Menace (of which this was the first) have taken their place as landmark works.
Dodgy seaside boarding houses like the one run here by Meg (a totally dippy but oddly sensual Eileen Atkins) and deckchair attendant husband Petey (Geoffrey Hutchings) are now virtually extinct.
But the threatening forces that lurk just the other side of the door, just inside another layer of personality are, if anything, even more pressing.
Think Guatanamo Bay. Think Columbine. Think Basil Fawlty ? another mad character inspired by the proprietor of a seaside establishment. Basil is funny ? but does Manuel think so?
Similarly Goldberg, the beautifully turned out Jewish fixer, who comes in with his frightening and frightened Irish henchman McGann (the splendid Finbar Lynch), is portrayed by Henry Goodman in a stupendous performance. Today he could work for Donald Rumsfeld as opposed to ?Monty?.
Sinead Matthews as Lulu gets the biggest laugh of the evening with her accusation that her sexual knowledge after a night with Goldberg is that of a woman with three husbands behind her in a production in which director Lindsay Posner has made sure the comedy is not missed.
Paul Ritter as Stanley, the victim of whatever conspiracy is going on here, looks too like Elvis Costello for comfort early on ? and sounds rather too much like James Dreyfuss, but, like the rest of the cast, gives a brilliant performance.
You won?t go to a better party than this.
Running time: Two hours 20 minutes. Until March 26.