In the crayfising village of Port Hammer, Sabbath Cullen has been raised by a good man to be a good man. Lately, though, his vision for this little place at the bootom of the world has become an obsession and his wife, Hannah, will suffer for it. But so will he.
Not far away, Chu Gon, a man from a very different community, is cast out with his family and forced to begin an uncertain new life in Port Hammer. Sabbath and Chu find in each other the strength to confront dilemmas of the heart, mind and even nature itself as they become unlikely friends.