This really is a great mystery/thriller series. Top realistic performances from the cast especially Morven Christie and Derek Riddell was just like a driven but honest senior cop..
They also got the police scenes right = None of that business of D. C.s calling their guv'nors by first name or kicking off with the higher ranks for 'dramatic' effect as we saw in Line of Duty...well done. More from the writer of this series please! Also having two super actors in the form of Steven Mackintosh and Peter Mullen really adds a great 'heft' to their various scenes.
Morven Christie's performance was so skilful, she must have been exhausted. A character under huge stress throughout and yet never puts a foot wrong..a great naturalistic performance. It was so rare in thriller/dramas where the central character doesn't have a trusty sidekick or friend with specials skills...she's all alone.