Wolf: Yet another troubled detective. DI Jack Caffery becomes is obsessed with the neighbour he believes murdered his 10 year-old brother 25 years ago. He sits and sleeps in an attic bedroom watching the neighbour's house, his GF is getting tired of this. He even moved back from Monmouthshire after the neighbour was released from prison (he was in for other crimes). Meanwhile back in Monmouthshire a family are put through an odd ordeal. It seems to be related to a double murder which took place 5 years before. After a run in with the neighbour Jack is put on leave and ends up back in Monmouthshire where he helped in investigate the killings, naturally his personal life is complicated there as well. Dark, compelling, after two episodes I;m hooked. Based on a Mo Hayder novel. Six episodes on BBC1/iPlayer. Directed by Lee Haven Jones & Kristoffer Nyholm, screenplay by Megan Gallagher. 8/10.