剧情：
Bullying snob Alistair Kingslake is killed with a golf iron at the Whiteacres golf club. After another member, Miles Tully, tells Barnaby about illegal gambling among players, another member, who has had an 'odd phone call' is also slain. A figure in a blue tracksuit is seen at both murders. In fact there have been unreported assaults on members over the months. Barnaby discovers that the gambling is rife and the social-climbing steward , Mrs. Fountain, and her two warring sons are lending money to the gamblers and assaulting them if they fail to pay. Indeed Mrs. Fountain's scheming has driven the killer to commit the Dogleg Murders.
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