Been binge watching this programme. Didn't realise it was first aired in 2013, no idea how I missed it. A wee bit like a who's who - oh Gillian Anderson from the X Files, Jamie Dornan from The Trourist, Niamh McGrady from Holby etc etc. Bit disturbing in places, but still find it compulsive watching.
It's great maggiebee, edge of seat stuff. We binge watched it too last year. Another to binge watch is Sherwood. We also liked the two Manhunt series with Martin Clunes, brilliant stuff!