General Bottando of Rome's Art Theft Squad is in trouble: his theory that a single master criminal, dubbed 'Giotto', is behind a string of major art thefts has aroused the scorn of his arch enemy and rival, the bureaucrat Corrado Argan. He needs a result, and the confession of a dying woman may just provide the vital clue. In pursuit of the elusive Giotto, Bottando's colleague, Flavia di Stefano, sets off hotfoot for Florence, and English art dealer Jonathan Argyll is dispatched to London and then on to rural Norfolk...only to discover a body and a mystery which could lead to the greatest art find of his career...