A minister has been killed. Mathias and Rhys investigate his life and violent death.\r\n　　A curator&＃39;s body is found in a shallow grave. The team investigate her death.\r\n　　An estranged husband kidnaps his son.\r\n　　A woman&＃39;s suicide is thought to be related to another death.

精选短评：结尾呼应第一季，这剧里仿佛没有好人，除了三季未换衣服的女探长。