Ronnie and his new partner DS Joe Hawkins are leading an investigation into the death of jeweller Harry Bernstein, who is found dead with no hands or teeth. His wife Lindsey, her lover David, and a former business associate are all possible suspects. But the case takes a surprising turn when Bernstein's sister turns up with his severed hands. They were delivered to her house in a box to lend weight to a very simple message: ‘not guilty'.