主人公Marcella Backland是一名年近40岁的女侦探，11年前因为结婚而离开了自己热爱的警察工作。Marcella的婚姻突然终结——她的丈夫Jason突然宣称自己不再爱她并快速离开了她——女儿又躲在寄宿学校里不肯见她，她只好回到既熟悉又陌生的大都会警署命案调查组重新探索自己的人生道路。上级立刻指派她调查一系列奇怪的谋杀案，这些新案件看起来与11年前发生的、始终未能侦破的多起谋杀案相似。Marcella早在2005年就曾调查过那些谋杀案，但因为当时她的第二个孩子不幸流产，悲伤的情绪严重影响了她的办案能力。或许是当年的凶手再次现身？或许是有人模仿作案？剧情将重点探索这名单身女侦探的心理世界，尤其是她处理一起有多名潜在嫌疑人和受害人的连环谋杀案时的心理世界。她的精神世界如此脆弱，她如何能很好地完成工作？她一心扑在工作上，就能找到她想要的答案吗？或者她的精神状态将把她引入更加危险的领域？另一方面，Marcella始终怀疑丈夫离开自己另有动机，于是在工作之余做了大量调查工作。糟糕的是，她的发现可能导致她更加心碎。
播出日期: 2016-04-04
运行时间: 46 min
概述: Former detective Marcella Backland is shocked to the core when her husband Jason leaves her unexpectedly, confessing he no longer loves her. Heartbroken, she returns to her job on the Met's murder squad that she gave up 10 years before to have her second child, and decides to follow up on a hunch she had in a case involving a serial killer.
播出日期: 2016-04-11
运行时间: 46 min
概述: The Gibson family are in a state of panic when Grace is discovered missing, and Marcella tries to make sense of the previous evening's events, scouring CCTV footage in an attempt to discover more about her disappearance. Cara returns home from her latest job, in which she has stolen a watch, some earrings and a bracelet, but is unaware of their significance and the danger she's put herself in, with all of the items recognisable as trophies taken by the Grove Park Killer.
播出日期: 2016-04-18
运行时间: 46 min
概述: Grace's body is discovered by the police and Marcella tries to keep her head and hide the fact that she was one of the last people to see her alive. Sylvie is distraught at the loss of her daughter and her dismay is further compounded when she learns that Grace and Jason were having an affair, while Henry tries to find comfort with his friends Matthew and Yann. Meanwhile, Peter is released from open prison and makes a beeline for Maddy, who lies to him about having a boyfriend.
播出日期: 2016-04-25
运行时间: 46 min
概述: An aborted attack on an elderly man gives the police a new lead in the Grove Park killings, while Marcella tries to track down the taxi driver from outside Grace Gibson's house, fearful that he saw her on the night of the murder.
播出日期: 2016-05-02
运行时间: 46 min
概述: Mo holds the police responsible when Hassan is shot, while Marcella triumphs over Peter Cullen and finally gets the information she is after relating to Grace's death. Jason manages to get his job at DTG back - but at what cost? - and deliveryman Ronnie makes the mistake of his life.
播出日期: 2016-05-09
运行时间: 45 min
概述: The killer's next victim is a six-year-old girl, which devastates Marcella, and a DNA match gives the police team its strongest lead yet. Meanwhile, DI Tim Williamson investigates Andrew Barnes' death - was it really suicide?
播出日期: 2016-05-16
运行时间: 46 min
概述: Mo confronts Marcella after finding his brother dead, while the detective has her doubts as the police continue to investigate Yann. Tim starts to look into the curious circumstances surrounding the death of Andrew Barnes, bringing him into contact with Jason.
播出日期: 2016-05-17
运行时间: 47 min
概述: In her desperate hunt for Matthew, Marcella questions Henry at his home. Meanwhile, the pressure mounts on Jason as Tim's investigation into the murder of Andrew Barnes gathers pace, and the killer is finally revealed, causing shockwaves among the entire team.
