They're gone. We will find them

1934. Private detective Miranda Green investigates a murder perpetrated in the British Embassy in Cairo, where a top secret document was stolen, risking to jeopardize both Buckingham Palace and the peace of the world. All those present in this closed place are suspected: the American photographer, the English student, the American actress, the Egyptian security guard, the ambassador interpreter, the Egyptian gardener and - why not? — the Ambassador himself. But who would have expected that a small group of Nazis would be behind a plot, risking to jeopardize both Buckingham Palace and the peace of the world?