21:20StrikeTroubled BloodEpisode 3BBC One Duration: 59 minutes Audio described Sun 18th Dec 2022, 21:20 on BBC One Northern Ireland HDAvailable for yearsWatch nowSpurred on by the father of a young woman who also went missing in the 1970s, the detectives attempt to outwit an incarcerated serial killer who may hold the key to the case.ContributorsCormoran Strike:Tom BurkeRobin Ellacott:Holliday GraingerSaul Morris:Jonas ArmstrongJoan Nancarrow:Linda BassettIzzy Chiswell:Christina ColeKim Sullivan:Sutara GayleSam Barclay:Jack GreenleesDennis Creed:Kenneth CranhamPat Chauncey:Ruth SheenWriter:Tom EdgeDirector:Sue TullyProducer:Alex RendellExecutive Producer:JK RowlingProduction Company:Bronte Film and Television LtdGenresDramaCrimeBrandStrikeSeriesStrike: Troubled Blood Source: BBC Online