'Jane Casey's police procedurals go from strength to strength' Sunday Times 'If you have not read Jane Casey, start immediately' Marian Keyes 'The most dangerously addictive series in crime fiction' Erin Kelly ______________ Their job is to fight crime. Now they are the victims. . . A killer is terrorising London and this time the police are the targets. Urgently re-assigned to investigate a series of attacks on fellow officers, Maeve Kerrigan and her boss Josh Derwent have little idea what motivates the killer's fury against the force. And they know it will only be a matter of time before the killer strikes again.