It was largely chance that took Dougal Macneil to the empty racetrack that morning, but when he inadvertently sees - and photographs - something he shouldn't he is soon under threat from a seemingly omnipotent force.

Colonel Weber, head of police of the tiny Central American country of Montoro, is sheltering a former Nazi whose name is high on Israel's most-wanted list. And on the face of it he holds all the cards: control of the police force, the trust of government officials - and Macneil's wife, whom he is holding in 'protective custody'. But Macneil is not an adversary to be underestimated . . .