Show 500: The Secret, 8th June, Udderbelly Festival, South Bank, London

Setting: modern-day self-help seminar

Self-help guru Harry Mitchum has been transforming lives for decades. When three self-improvement-addicted friends join the programme, they are changed in ways that they don’t like in each other. Bossy, fretful Jenny becomes emotionless and cold; woman-fearing Jean-Claude becomes a serial womaniser; and uncertain Miles decides to usurp the place of Harry Mitchum himself.

Will they lose themselves in their new identities, or rediscover what made them friends in the first place?