Strong violence, themes and sexual references
|Actors:||Wil Johnson, Sue Johnston, Trevor Eve, Claire Goose, Holly Aird|
Chief Inspector Boyd and his team are back to reopen the files of more cold cases. A spectral leader, calling himself 'The Shepherd' is inciting vulnerable women to commit murder; a sadomasochistic killer is counting off his victims, leaving the word 'sorry' carved into their skin; and the discovery of an unexploded bomb threatens to bring unforeseen upheaval to the team. But the final case of the series brings a shocking turn of events that shakes the team to its core.