'We're dying of manners. We're under siege from personal embarrassment. This is not sane. This is not rational. That woman is a monster!'

While on holiday, Peter and Debbie befriend Elsa: a lusty, Trump-loving widow from Denver, USA. She's less than woke but kind of wonderful. They agree to stay in touch because no one ever really does, do they?

When Elsa invites herself to stay a few months later, they decide to look her up online. Too late, they learn the truth about Elsa Jean Krakowski. Deadly danger has just boarded a flight to London! But how do you protect all that you love from mortal peril without seeming, well, a bit impolite? Because guess who's coming... to murder!

Steven Moffat's play The Unfriend takes a hilarious and satirical look at middle-class England's disastrous instinct always to appear nice. It was first performed at the Minerva Theatre, Chichester, in 2022, before transferring to London's West End first to the Criterion Theatre, then to Wyndham's in 2023.

Steven Moffat is an award-winning writer whose internationally successful television shows include Doctor Who, Sherlock and Dracula the latter two co-written with actor and writer Mark Gatiss, who made his stage directorial debut with The Unfriend.