Bodies are washing up along the River Thames, and DI Henley fears the notorious Jigsaw Killer has returned. But Peter Olivier, the original killer, is already behind bars — and Henley was the person who put him there. Desperate to stop the copycat killer, she is forced to turn to the one man she hoped never to see again. But Olivier has no intention of helping her easily. With the body count rising, Henley faces a deadly race against time.
