Summary
It was a shock to the Duchess of Steynes when her son announced his engagement to the grand-daughter of an obscure violinist, Julius Anthony; but still more of a shock was the discovery of Anthony's murdered body in the cinema at which he played. Dr. Constantine and Detective-Inspector Arkwright join forces in their third (and final) case together. Their only clue at the outset is the dead man's mysterious assignation at the Trastevere restaurant, one of London's most fashionable eateries, and located, as it happens, on the property of the Steyneses. The biggest challenge at first appears to find any kind of motive for the old man's slaying - until their investigations lead in a fiendishly unexpected direction.