Adam Ferranti was a talented American journalist, who moved to England to escape the issues surrounding his fall from glory at the Washington Post; only to be thrust back in it when a mysterious serial killer makes him his confidante. DS Stephanie Walker is a member of the West Yorkshire Police. Whilst tough and results-driven at work, she hides the abuse she suffers at home. She finds Ferranti annoying but he's her only chance to stay close to what the killer is planning next. Ferranti reluctantly complies with the Police, but when the killer reveals himself it suddenly gets personal.