I cannot praise this series enough. It has an air of realism about it from its location to the main actors. The lead sergeant Catherine Cawood and her sister are so ordinary, preoccupied with ordinary things, (no trendy,smarmy,clever middle class media interpretations of what ordinary people speak like dialog). Without exception every character is believable. With master classes in acting from the lead, her sister, her grandson and Tommy the maniac. The criminals are believably cruel and stupid in measure. The damaged and unfortunate are portrayed realistically but with compassion. No left wing idealism or right wing coldness that usually invades these type of program. The setting is the bleakest place I've ever seen, a beautiful English valley shrouded in mist, dampness and high rises. The streets and buildings are claustrophobic. Most of all the story is credible, consistent and finely paced. raw emotions are not avoided and dysfunction is everywhere. And yet there's something noble in sergeant Catherine Cawood.