Innocent Blood: The compelling crime series (DCI Andrew Fenwick)

They watched as the car burnt. A smell of gasoline mingled with the throat-catching stench of melting rubber, almost masking the sickly sweet smell of roasting flesh. No one spoke. The time for recriminations and the appointment of blame would come. For now they were united by the need to cover up a crime and destroy the evidence.

As DCI Fenwick investigates a powerful and predatory paedophile ring and Inspector Nightingale is left to deal with an ex-serviceman turned vigilante, they are both forced to ask themselves: when is a murderer not a murderer, and how far are they prepared to go to see justice done?