Inspired by the ancient legend of a man who spent 35 years in solitude in the Egyptian desert, this new Wellcome Trust-supported ensemble performance explores, through song and body, landscapes where mental health and religious experience collide. How to treat a religiously-orientated mental illness? This is a problem facing NHS psychiatrists treating patients who say they are possessed by spirits. Is there a limit to what Western medicine can heal, when faced with a dark night of the soul? With insight from psychiatry and anthropology, this show plunges soul-first into the human experience of demon possession.