The constant threat of terrorism has left London under round-the-clock surveillance and in the tightenting grip of privatised security firms. Journalist Antonia Conti suspects one such organisation - GRM- not only of being behind several women's disappearances, but of financing the widespread violence it claims to fight. When a gang of hitmen use rampant state surveillance to track Antonia down, she narrowly escapes with her life. But then one of them turns up dead - covered in her DNA - and Antonia finds herself the primce suspect in his murder.