If All's Well That Ends Well, Measure for Measure and Troilus and Cressida have earned the sobriquet "‘problem plays", what price Titus Andronicus? Does a director seek out a Saw vibe for the horror? Do they go for a deadpan Spinal Tap’s disappearing drummers for the demises? Do you go hard and locate the murders within the atrocities being committed on European soil right now?

The set of 2:22 A Ghost Story is open to the auditorium when we arrive and locates us at once in gentrification-land. We are in a slick kitchen with white chevron tiling, new units and an obligatory island; big skylights loom overhead and outsize glass doors lead to the back garden - and the foxes. Their mating screams will terrifyingly punctuate the action, at maximum decibels.

Culture which arrives from the margins to the mainstream is a classic phenomenon. In the case of Sam Steiner’s Lemons Lemons Lemons Lemons Lemons it has taken almost a decade for this two-hander to make the journey from a student production at Warwick University, via the Warwick Arts Centre in 2015 – plus outings to the National Student Drama Festival and Edinburgh Festival – to the West End.

Do the right thing! But doing the right thing isn’t easy – especially if you are a teen. And a female teen who is being pressurised by your mother and your school teacher. It takes courage to make the best decisions, it’s scary and it’s hard.

Frantic Assembly’s Othello, originally co-developed with the Lyric in 2008, is back in its third iteration, and it’s still not exactly the play you studied at school or saw other companies perform. In some ways, that’s all to the good.

Ever been to a queer club? You know, drag cabaret night at Madame Jojo’s, or the Black Cap or Her Upstairs. No? Well, not to worry – the Royal Court’s latest provides a fabulously extravagant simulation of the experience with its staging of Sound of the Underground, a play written by Travis Alabanza – whose classic Burgerz is coming to the Purcell Room in March – and directed by his co-creator Debbie Hannan.

There’s a chance – a slim one – that you haven’t seen Noises Off, Michael Frayn’s farce about a farce that, as legend has it with The Rocky Horror Show, must surely be going up somewhere in the world every day.

Imagine what would have happened if the young Charlie Chaplin and Stan Laurel were cabin-mates on a transatlantic liner. The Told by an Idiot company did just that, and the result is this show, a return visitor to the International Mime Festival, now bearing awards. 

We all have that friend. The person you met on holiday and couldn’t shake off. You added each other on Facebook, but they posted so much you’ve quietly unfollowed them. You can’t quite bring yourself to unfriend them, though. In The Unfriend, a new play at the Criterion Theatre after a Chichester premiere, Sherlock writer Steven Moffat asks: what if that friend was a murderer? And what if you had invited them to stay in your house?

Like families, nations have secrets: dirty linen that they prefer not to expose to the light of day. Patriotic myths need to be protected, heroic narratives shaped, good guy reputations upheld. In 1942, the USA rounded up Japanese-Americans and locked them away in the badlands of the Midwest and promptly forgot about them – and then worked hard to keep it that way in the decades that followed. It’s likely you didn’t know that and it’s no accident if so.