Day to day, on the streets, they're at the sharp end of the fight against the drug pushers, porn barons, paedophiles and pimps who run this great port's crime networks. In this dark unequal world DC Isobel de Pauli is a stranger - not to crime, but to the ancient, unseen blood connections that pulse in the veins of Liverpool's criminals... and cops.

In a city where heroin dealing can bring the death sentence, drug rings mean business…and so do the police. The activities of the city’s vice squad – including high-level sting operations and the interrogations of murder suspects and drug runners - are at the heart of the stories.