The hardest killers to find are those ordinary people living ordinary lives. Hiding in plain sight they are protected and hidden by their everyday conformity, yet are still able to take innocent lives. Herein we meet an intelligent and apparently upright middle manager on the verge of carrying out a clever mass genocide. You wouldn’t know it, however, if you were his best friend, close work colleague, neighbour or lover - unless he decided to tell or recruit you. And he’s hardly likely to do that, is he? We also meet a sexually taboo couple who are convinced that their revenge bombing campaign is equally foolproof. These are two situations that Albie Cork, our single-leg amputee and London counter-terrorist officer and his colleagues have to face in the line of duty. One or two of our ordinary killers will have success. The questions are; who and how many people will die?