Barnaby begins to think the damning evidence he helped provide to convict a murderess wasn't exactly as watertight as it first looked.
DCI Lewis brings a night out on the town with the team to a halt when a young boy is found stabbed in the street. When the boy subsequently dies of his injuries, the team finds themselves investigating why anyone would want to kill a seemingly harmless young footballer with a promising career ahead of him?
William fears things with Mary are ruined, but she's preoccupied with a truant teenager and her meddling mother, Molly, who's got "fix up" plans of her own.