The plot revolves around British aristocratic detective Inspector Thomas Lynley and his working-class partner, Sergeant Barbara Havers, as they solve crimes interwoven with social issues. As the 8th Earl of Asherton, Lynley is from the highest aristocratic order of Britain outside the royal family, while Havers is a perceptive woman who cannot boast a rich heritage. The divide in their social status often makes for interesting conversations and differing perspectives that explore the themes of class and gender.公路上一片混乱，枪声爆炸声不断，而牦牛群攻到近前后就停止跑动，放任它们身上的狼群在车辆中搜索杀人，到处是咀嚼和哀号声，逃出攻击范围的幸存者都是不忍回头去看。