Thanks to numerous television outings, Derren Brown is Britain’s most recognised “psychological magician” (his term). A few years ago he played Russian roulette live on TV. Mercifully his new show is far gentler fare, but no less impressive for it.

From the off there is an enjoyably wry sense of humour; a video screen talks us through a few fairly standard concentration exercises, with inevitably surprising results. When the man himself takes to the stage he is surprisingly likeable, with a nice line in politely smutty banter.