Don Colyear has made the transition from his role as a Community Police Sergeant to a new position in Edinburgh's CID, but the adjustment has not been easy. The workload is one thing but being micro-managed by DCI Templeton as well is more than testing. When Colyear's investigation into a mysterious death spirals into a complicated case centred on a massive consignment of Class A drugs, a double murder and a clash between low-level and professional criminals, his instincts are put to the test.