In the heart of London, an anonymous phone call draws two brilliant detectives—a young woman in the early stages of her career and a well-connected man determined to protect his legacy—into a fight to correct an old miscarriage of justice.

Lisbon, early 1940s. The neutral port town is an open door to freedom, for those who are escaping the Nazi occupied France and eastern European countries, and a war field for spies of every description. Lisbon became a cosmopolitan town, where the Duke of Windsor, Primo de Rivera, Pola Negri, Leslie Howard, Walter Schellenberg and Juan Garcia are often together in the luxury hotels and night-clubs. Espionage and crime go hand in hand, despite of, or encouraged by, the Portuguese secret police.