Some Demon by Laura Waldren is a gem of a play that examines the techniques of manipulation and bullying practised by shrinks on anorexics. The setting is an NHS referral unit where Sam, an 18-year-old philosophy student, arrives with a minor eating disorder. Like every patient, Sam is told that her personality is immersed in a civil war and that two implacable forces – the ‘diseased self’ and the ‘whole self’ – are fighting for control of her destiny.