Joan is wed without a dowry to a knight without a household. In the cold and dark of 12th-century Northumbria she struggles under the burden of life as his servant and wife, mother to his children, keeper of his hall, and tanner of the wolf pelts he must render to the king in tax each summer. Alone at the end of the world with her husband and his cruel, mercurial sister-in-law, Joan gradually descends into a netherworld of filth and madness as the demands of her new life crush her mind beneath their weight.