The year is 1750. Tristan Hart precociously talented student of medicine practising under the legendary Dr William Hunter. His obsession is the nature of pain & preventing it; the relationship between mind & matter & the existence of God. A product of the Age of Enlightenment he is a rational man on a quest to cut through darkness & superstition with the brilliant blade of science. Tristan Hart madman & deviant. His obsession is the nature of pain & causing it. A product of an age of faeries & goblins gnomes & shape-shifting gypsies he is on a quest to arouse the perfect scream & slay the daemon Raw Head who torments his dark days & long nights. Troubled visionary twisted genius loving sadist. What is real & what imagined in Tristan Harts brutal beautiful complex world?