A phenomenal bestseller in France, this novel is the 4th irresistible installment in the internationally acclaimed Commissaire Adamsberg series. On the edge of Paris two small-time drug dealers have had their throats cut in a peculiar fashion. Setting out on the trail of the shadowy killer, Adamsberg and his detectives travel between Paris and the Normandy countryside. His investigation into these horrible deaths brings him into contact with the attractive Ariane Lagarde - a pathologist who caused him professional grief 25 years ago.