May 1915. With thousands of Britons fighting in the trenches, a severely depleted police force remains behind to keep the Home Front safe. Scotland Yard is already overstretched when the sinking of the Lusitania sparks an unprecedented wave of antiGerman riots and arson attacks. Among the victims is the immigrant tailor Jacob Stein, found dead in his burntout shop. Initially Jacob's killing appears to be the tragic excess of wartime hysteria - but when it transpires that Jacob had been stabbed, his safe ransacked, and his daughter Ruth raped, the possibility that these assaults were longpremeditated crimes becomes unavoidable. Detective Inspector Harvey Marmion and Sergeant Joe Keedy must take on this case of coverups and contradictions and track down Jacob's killer and Ruth's assailants.