Heartbreak Hotel, Summerhall ★★★★ 

Before Lucas Hnath wrote Red Speedo, he had heard a 2004 speech at a hearing investigating baseball doping that declared the practice “un-American”. That started him thinking about the concept of fairness. After the play had been produced in New York In 2016, another politician was boasting that Americans were going to win such a lot, they "might even get tired of winning”. 

The Iranian playwright Nassim Soleimanpour is many things, some seemingly contradictory: a) a clever, poetic playwright who uses high-tech elements in his work to inventive effect; b) a mischievous presence who likes to appear in his own highly unusual plays; c) a man in pain who is traumatised by his self-imposed exile from Iran. 

There’s an exuberant comedy from the start in Katori Hall’s The Hot Wing King, which comes to London after an initial Covid-truncated Off Broadway run which brought her a Pulitzer prize in 2021. Roy Alexander Weise’s production puts in all the energy it can find and then more, doing its best to balance that comedy with the more serious themes, such as family responsibility, and a man’s role in the world, with which it is interspersed.

Jerry Herman is the king of pep. Way too much of it in the first 20 minutes of the recent revue Jerry’s Girls had me screaming for a breather, but here the opening cavalcade, gorgeous overture included, intoxicates thanks to Dominic Cooke‘s razor-sharp direction. And the two torch songs, "Before the Parade Passes By" and the title number, begin in pathos before Imelda Staunton flashes her high-heeled party shoes.

The Baker's Wife closed on the way to Broadway in 1976, since which time Stephen Schwartz's stubbornly resistent if sweetly scored musical has been revived and reworked all over the map, not least by Gordon Greenberg.

A stark end-title at the end of this collection of short films sums up the dire situation the UK is in: one in five people,14 million Britons, are now living in poverty. 

Who was Stefan Zweig? It's likely that it's mostly older folk who studied German literature at A-level who have encountered this superb Viennese writer in his native language, though his short story from 1922, Letter to an Unknown Woman, eventually emerged as a starry Hollywood film in 1948.

Sarah Power, the writer of Grud, now in the Hampstead’s smaller space, is a self-confessed geek who excelled at science at school. She also had an alcoholic parent, and both autobiographical strands have turned up trumps in this, the second of her plays to be produced professionally. 

For a long stretch of its first half, Dominique Morrisseau’s 2016 award-winner, Skeleton Crew, seems a conventional workplace drama, though in a much gentler key than Lynn Nottage’s Sweat. But this slow burn catches fire.