On a stormy night in December, a tree is blown down on an isolated Devon farm. And when the fallen tree is dragged away a rucksack is found caught amongst the roots - and next to it is a human skeleton.
The discovery of the body and the rucksack revives memories for DI Wesley Peterson. A young hitchhiker who went missing twelve years ago was last seen carrying a similar backpack. Suddenly a half-forgotten cold case has turned into a murder investigation.
Meanwhile, in the nearby village of Petherham, a famous TV psychic is found dead in suspicious circumstances whilst staying at a local guesthouse. Wesley's friend, archaeologist Neil Watson, is studying Petherham's ancient mill and uncovering the village's sinister history. Could the string of mysterious deaths in Petherham over a hundred years ago be connected to the recent killings?
As Wesley digs deeper into the case, it seems that the dark whisperings of a Burial Circle in the village might not be merely legend after all . . .