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. With the crime committed in rooms in use by an exiled king and his retinue, there are those who fear diplomatic repercussions and would rather the case be forgotten. Coburg and Lampson must untangle a web of deception if they are to solve the case – and survive.