When Adam Dalgliesh visits Larksoken, a remote headland community on the Norfolk coast in the shadow of a nuclear power station, he expects to be engaged only in the sad business of tying up his aunt’s estate. But the peace of Larksoken is illusory. Someone is terrorising the neighbourhood, and Dalgliesh finds himself drawn into the lives of the isolated headlanders in an attempt to uncover what sinister forces are at work.