1944. Sent to Spain to arrest a rogue spy, British agent Peter Cotton expects an easy first assignment. But he arrives to find his quarry dead and all of Cadiz awaiting his arrival. In a hotbed of scandal and murder, Cotton must navigate through a labyrinth of international conspiracies, shifting political allegiances and a mysterious local expatriate community to discover the truth. What he unearths could just tilt the emerging balance of post-war power and the course of history for ever.