SarahLancashirereturnsintheacclaimedBBCthrillerwrittenbySallyWainwright.No-nonsensepolicesergeantCatherineCawoodisbackheadingupherteamofdedicatedpoliceofficersintheCalderValleyinWestYorkshire.Whileonduty,shemakesagruesomediscovery–abody.Thevictimsinjuriesbearastrikingsimilaritytoastringofothermurdersoverthepreviousfe...