Helen West is a crown prosecutor who cares about people in the criminal justice system and seeks to ensure that justice is done. She has a particular interest in women's issues and has to put up with her somewhat odd superior and his cleanliness phobia. She recognizes that it's the role of the police to find the evidence but also feels it warranted to occasionally investigate matters herself. Unmarried, she is also in a relationship with Chief Supt. Bailey, though neither seem to be able to make up their minds about their futures or what they want to get out of life.
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。
