Diamonds! Forty-thousand diamonds and a plot as complex as crystallized carbon. Detective Sergeant Johnny Pewter is sent to prison on a trumped up charge to get next to one Sellerman who is involved in a scheme that will make the London Train Robbery look like the Amateur Express. But he soon finds himself railroaded into murder. Self-preservation forces him to play the traitor to both sides as the scene moves through Europe to Africa. Suspense that moves...grooves.