Ancient Egypt: ‘Wandering womb’ theory first recorded. 1518: Hundreds of people dance uncontrollably on the streets of Strasbourg. 1877: Dr Jean-Martin Charcot gives demonstrations of hypnosis on female ‘hysterics’ in Paris. 2019: An award-winning theatre company write this blurb. Right now: You read this and understand implicitly that it won’t just be a group of people screaming in a dark room for an hour. You sense it’s an exploration of medical and theatrical storytelling that transcends time. You feel a sensation that can only be described as an uncontrollable urge. You book your ticket.