You’re already in the land of the unpredictable with Pina Bausch. Creating unease was her métier. But when she pulls a gag intended to convince you that something has gone badly wrong on stage, and then it really does, the discombobulation is profound.

The trouble with the general election is that while everybody talks about money, nobody talks about ideas. We know the price of everything, but the value of nothing. This might seem to be a triumphant demonstration of the essential pragmatism of the nation, yet there was a time in English history when ideas mattered. And when they were passionately discussed, and bitterly fought over. I’m referring to the English Civil War of the 1640s, and its aftermath when king Charles I was beheaded, an era explored by Caryl Churchill in her 1976 docudrama.

“Fury Over Sharia Law For Toddlers!” No, not a prime example of spoof headline generator Daily Mail-o-matic, but the latest piece of fantastical scaremongering from the Clarion, a 125-year-old (semi-)fictional rag that’s upped sales by splashing on immigration every day for a year.

Coming-of-age comedy, moonlit romance and a gentle folk soul: can this really be Eugene O’Neill? The master of darkness makes a surprising departure with semi-autobiographical 1933 work Ah, Wilderness!, which visits staple tropes – addiction, family strife, responsibility and regret – with a marked lack of rancour. Like its youthful protagonist, world-weary cynicism is a mere pose, abandoned in favour of beguiling, hopeful innocence.

The NHS is us. Early in this new verbatim play about the National Health Service, one of the characters says that when a sample of Britons was recently asked what the most important institution in the UK is, six per cent said the monarchy, 12 per cent said parliament, but a whopping 48 per cent said the NHS. It is central to our national identity, and arguments about its condition are a vital part of the general election campaign – which explains why the Royal Court has programmed this show now.

Owen McCafferty’s new play could have had as its starting point John Updike’s line "Celebrity is a mask that eats into the face”, for it deals with stand-up comedian Steve Johnston, who hungers after success so much that he is prepared to jettison everything that matters to him – girlfriend, integrity, talent – to achieve it. And that description could indeed apply to many so-so comics currently plying their trade who gain financial reward in inverse proportion to their talent (no names, no pack drill).

Playwright Simon Stephens has made a long journey. Starting off as a young in-yer-face writer, then pausing to mellow over slices of life, then winning awards with state-of-the-nation family dramas and teen plays, he has ended up by brilliantly adapting The Curious Incident of the Dog in the Night-Time. And yet. Ever since his Three Kingdoms was staged here in 2012, in his heart has been the desire to be a Continental playwright – and Continental playwrights love to mess with, sorry deconstruct, the classics.

The 150^th anniversary of Lewis Carroll’s seminal novel has inspired a raft of commemorative works, from Damon Albarn and Moira Buffini’s musical Wonder.land to Holland Park opera and Glastonbury’s surrealist haven; Disney’s film sequel arrives next year. Les Enfants Terribles’ contribution takes a literal trip down the rabbit hole, guiding audiences into the depths of Waterloo Vaults.

When does a Gilbert and Sullivan chorus make you laugh, cry and cheer as much as any of the famous set pieces? In this case when Major-General Stanley’s daughters “climbing over rocky mountain” wear pretty white dresses but turn out to be gym-trained showboys from the waist up, with their very own hair. That’s already one extra dimension to an operetta gem, but there’s so much more to enjoy around the crisp delivery of Gilbert’s undimmed lyrics.

Russia isn’t the only country where violations of personal freedoms and censorship seem to be mounting by the day, but it’s surely the most confused: ask any of the persecutors what they hope to achieve, and you won’t get a convincing answer.