Leeds police constable Jo Gillespie (Sheridan Smith) is devastated when her husband, undercover officer Ryan (Kenny Doughty), is killed in suspicious circumstances. As she battles to stay strong for the benefit of daughter Melly (Honor Kneafsey) and stepson Hal (Oliver Woollford), Jo is urged by her bosses, DCI Will Hepburn (Douglas Henshall) and Chief Constable Carolyn Jarecki (Geraldine James), to leave it to her fellow officers to find the killer. But when the murder enquiry starts to uncover some dangerous secrets about Ryan, Jo's faith in the police family of which she has been a part for so long is severely tested. No longer sure who to trust, Jo embarks on her own investigation with the help of friend and colleague Jack Clark (Matthew McNulty), but as they close in on the identity of Ryan's killer, Jo's hunt for the truth will put her own life in danger. Written by Matt Charman (Suite Francaise, Bridge of Spies) and directed by Michael Samuels (The Fear, Any Human Heart), Black Work is a powerful crime thriller that takes the audience into the murky depths of undercover police work and tells the story of a woman willing to risk everything to protect her family.

《9号秘事》第二季是由吉列尔莫·莫拉莱斯担任导演，《绅士联盟》成员史蒂夫·佩姆伯顿和里斯·谢尔史密斯自编自演，联合BBC推出的一部英国暗黑喜剧。该剧与《黑镜》结构类似，一集一个故事，每集故事都是独立的，第二季于2015年3-4月播出，一共由六个新故事组成。

本片始于英国男人马尔科姆（里斯·谢尔史密斯 Reece Shearsmith 饰）与其妻子克莱尔（谢里丹·史密斯 Sheridan Smith 饰）的婚礼，这对新人幸福的生活很快因马尔科姆的财政问题而产生裂痕。马尔科姆开始向克莱尔的食物和饮用水中投毒，他精心布局谋杀了妻子，从而骗取大笔保险金。数年后，马尔科姆娶了第二任妻子费莉希蒂（凯特·弗利特伍德 Kate Fleetwood 饰），因为财产问题，马尔科姆重施故伎，对妻子实施投毒，企图杀害她而获得保险金以及妻子原有的财产。然而，他的谋杀计划被及时阻止了。他的毒手继续伸向了第三名女性……
本片根据真实案件改编，此案为苏格兰史上最长诉讼案，马尔科姆因谋杀其第一任妻子克莱尔以及对第二任妻子费莉希蒂谋杀未遂，被判处终身监禁。

Two doctors in Victorian England use manual stimulation of female genitalia to cure their patients' ills, leading to the invention of the vibrator.