Bitterhall is a story of obsession told between three unreliable narrators. Daniel, O rla and Tom share a flat and narrate the intersections of their lives, from future-world 3D printing technology to the history of the book, to a stolen nineteenth-century diary written by a dashing gentleman who may not be entirely dead. A Hallowe'en party leads to a series of entanglements, variously a longed-for sexual encounter clouded by madness, a betrayal, and a reality-destroying moment of possession.