All six episodes of the award-winning BBC police drama. In a small northern town, two brothers serving in the police, Chris (William Ash) and Ray (Nicholas Gleaves), investigate the paedophile murder of a 12-year-old girl. When the brothers fear that the suspected killer might get away with his actions, they turn to vigilante justice, only for it to be revealed that the real killer is still on the loose. Caught between their need to deal with their guilt and the need to cover up their tracks, the case puts extraordinary pressures on the brothers. Laura Fraser and David Warner also star.