Dr. Brewster's suicide takes a particular twist when the pathologist determines that he had also been bound and gagged. The Brewsters, both medical doctors, ran a private clinic and their son John, who lived at home, is doctoral candidate in philosophy. One possible suspect is Michael Steppings who threatened the Brewsters and their nurse after his daughter suffered severe side-effects and is now in a vegetative state from a botched operation two years previously. The forensics lab determines that one of Steppings's threatening letters was altered and Morse learns that Brewster may at one time been having an affair, so he must consider another possible motive for murder.
第二季中，侦探杜尔西·柯林斯（凯特·波克斯 Kate Box 饰）和埃迪·雷德克利夫（玛德琳·萨米 Madeleine Sami 饰）将前往澳大利亚的Top End地区。她们起初在达尔文调查雷德克利夫前任警务伙伴布什的死亡案件，然而在一个偏远小镇发现了两名Top End知名人士的尸体，这开启了一场“更紧张、更棘手”的新调查。
