Veteran Scotland Yard Chief inspector Peter Cammon, semi retired, is sent to the Jurassic Coast to solve what at first seems to be an ordinary domestic crime involving a local mechanic. At first glance, it seems that the mechanic has murdered his wife and then drowned in the English Channel. Yet it doesn't take long for Cammon to learn that his case is a sideshow to a series of broader murders along the cliffs that has thwarted local police. A serial killer is at large and the two cases are intertwined, the solution can only be found together.