D.C.I.JaneTennisonisaskilled,top-classdetective,battlingtoproveherselfinamaleworld.Whileinvestigatingamurder,herstrengthofcharacterandskillsasadetectiveareputtothetestassheexposesacover-upwithintheforce.Andwhenasecondmurdervictimisdiscovered,theinquiryturnsintoagrislyinvestigationstretchingbackovertenyears.