To celebrate her long-awaited prestigious post as a Shadow Minister for Health and, hopefully, the stepping stone to party leadership, the newly-appointed British opposition politician, Janet, is throwing a party for friends at her London flat. Of course, in this select and intimate soirée, apart from Bill, Janet's self-denying academic husband, the elegant hostess has also invited a motley crew of elite, hand-picked guests: There's April, the sourly cynical American best friend; her unlikely German husband, Gottfried; there's also Jinny and Martha; and finally, Tom, the smooth banker in the impeccable suit. But inevitably, before dinner is served, the upbeat ambience will shatter to pieces, as festering secrets start surfacing, turning the otherwise happy event into the perfect domestic war-zone. Undoubtedly, after this night, things will never be the same again.