September, 1940. The sun is shining, and in the midst of the good weather Londoners could be mistaken for forgetting their country was at war - until the familiar wail of the air-raid sirens heralds an enemy attack. The Blitz has started, and normal life has abruptly ended - but crime has not. That night a man's body is discovered in an unmarked van in the back streets of West Ham. When Detective Inspector John Jago is called to the scene, he recognises the victim: local justice of the peace Charles Villiers. The death looks suspicious, but then a German bomb obliterates all evidence.

In the Welsh borders, isolated by heavy snow and flooding from the thaw, cut off from telephone access, a tragedy has occurred. Old Dr Robinson known to be 'a menace' on the roads has met his end in a car crash, his big saloon thrown from the track down the steep hillside. But when the police arrive there is more to the tragedy than meets the eye: why was there a second body - an outsider to these parts - in the back of the vehicle?

August, 1940. On the streets of London, locals watch with growing concern as German fighter planes plague the city’s skyline. But inside the famous Ritz Hotel, the cream of society continues to enjoy all the glamour and comfort that money can buy during wartime - until an anonymous man is discovered with his throat slashed open. Detective Chief Inspector Coburg is called in to investigate, ably assisted by his trusty colleague, Sergeant Lampson. 

December 1940. With the Luftwaffe pounding the city nightly, Londoners seek refuge in underground stations. Aldwych has been taken out of service to provide shelter for the British Museum's priceless Elgin Marbles, as well as civilians escaping the bombing. When the body of a young man is discovered on the tracks, wearing evening dress but barefoot, Detective Chief Inspector Coburg and Sergeant Lampson are on the case. Before long, more bodies are discovered, and Coburg's wife Rosa becomes a target for the brutal killer.

May 1915. As zeppelin bombs fall on London and with the sinking of the Lusitania, anti-German hysteria reaches fever pitch and attacks on German immigrants surge. Not even the West End of London is immune. Jacob Stein's bespoke tailoring business comes under brutal attack, leaving his safe ransacked, his daughter, Ruth, raped and Jacob dead.