Following his mother’s death, Chris is broke, separated, and living alone in his dingy flat. But he is determined not to go back to his old ways. No more taking the law into his own hands. Now, Chris does things by the book. When gang war erupts between two of Liverpool’s top drug-dealers, Chris is inexorably drawn in after his DCI threatens to expose his past misdeeds. But Chris is alone. The low-level criminals who once formed his network of informants are now either out of the game or in too deep. Which leaves only his former partner Rachel. Desperate to rebuild her own life and career, Rachel soon realizes she needs a partner who bends the rules. She needs Chris. As they are both sucked back towards the darkness, Chris and Rachel must pull each other back towards the light.