Keeping these streets clean is a Herculean task, enough to demoralize even the keenest rookie – but there’s a reason why this hotchpotch of committed cops are on this force, on this side of town. Drug labs, arsonists, neo-Nazis and notorious murderers are all in a day’s work for this close-knit team, led by the dizzyingly capable but unquestionably unhinged DI Vivienne Deering. But when a particularly twisted serial killer emerges it leaves even the most hardened of these seasoned coppers reeling.

Joanna Scanlan, Elaine Cassidy, Alexandra Roach, Will Mellor, Colin Salmon, Paul Ritter, Ste Johnston, Tom Varey, Saira Choudhry, Neet Mohan