Under pressure, fraying at the edges. In relentless night-time Liverpool, copper Chris is paired with a rookie. Will they save or destroy each other?

The adventures of Professor Wolfe Kinteh, a crime scene investigator in the north of England.

Jamaica, 1973. When a young boy witnesses his brother’s assassination, a powerful Don gives him a home. But 10 years later, when he’s sent to London, his past catches up to him.

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.