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?

Do you remember how the 1001 Nights ends? You know how it starts: Scheherazade has been married to a king who kills his brides the day after he marries them. She tells him a story so good that he simply has to know what happens next, and she survives the next day. This goes on for 1001 nights, until… what?

Pain is, at one and the same time, something to avoid, and also something you can use. Kahlil Gibran, the Lebanese-American mystical author of the 1923 best-seller The Prophet, concludes that, despite suffering, “all is well”, but how true is that? In his award-winning play, which premiered in Boston in 2011, American playwright Stephen Karam examines the issues in a thoroughly original, brilliantly constructed and thematically compelling way.

Opposition (and history) are the apparent mainstays of the ceaselessly busy James Graham, and he conjoins the two to riveting effect in Best of Enemies.

The set at the Arcola for Frank McGuinness’s Dinner with Groucho naturally features a table with two place settings and a backdrop of clouds in a blue sky. Overhead are pendant globe lights that will transform into stars. But the floor is a key feature too, covered in sawdust.

The kitchen sink drama has been a standby of English theatre for 70 years or more, but not always with an actual sink on stage. But there it is, in an everyday home that harbours a secret or two in Clive Judd’s debut play, the winner of the 2022 Papatango New Writing Prize. 

Every day there is bad news about the NHS — junior doctors are exhausted, nurses need foodbanks and the stats are hitting all-time lows. So a new play about a junior doctor facing the stresses of the job is certainly timely.

As its title suggests, Peter Gill’s Something in the Air is an elusive piece – it’s about catching at instinct, responding to intuition, bringing together overlapping hints of present and past lives. From these different stories, spun out of lived experience and imagination equally, the octogenarian playwright leaves the audience to craft a whole.

It’s particularly poignant to watch this story in the knowledge that a little over a year after US-led troops withdrew from Afghanistan, women and girls are enduring a renewed repression of their rights under the Taliban. The real-life story of The Boy with Two Hearts took place in 2000 – the year before the western invasion began; to see it today is a depressing reminder of how little was achieved through that ill-thought-out venture.

Can a play peak too soon? That's the quandary that attends the Old Vic airing of Eureka Day, Jonathan Spector's on-point if overextended comedy that was written prior to the pandemic but has absolutely come into its own just now. A skewering of liberal pieties that puts one in mind of a fellow theatrical satirist like Bruce Norris (Clybourne Park), Eureka Day takes few prisoners on the way to a flat-seeming ending.