The series begins when suspected human remains are uncovered on Whitney Marsh - Jess and Sunny are immediately called to the scene, abandoning their evening plans to Jess’s husband’s chagrin. Dr Balcombe’s analysis reveals that the remains are relatively recent and suggest a grim conclusion: the body was placed there already dismembered. With this insight, Jess and Sunny intensify their search certain that other body parts may not be far away.
　　As the investigation unfolds, viewers are introduced to a diverse new cast of characters: Melinda Ricci, an outspoken television commentator based in Ireland; Martin ‘Marty’ Baines, an autistic man living with his mother Dot in Deal, Kent; Asif Syed, an Afghan training for his UK citizenship test; and Juliet Cooper, a history lecturer and faculty head at a London university.
　　While these characters live seemingly separate lives, they are intricately connected by their pasts. It’s up to Jess, Sunny, and their dedicated team to uncover these hidden links and ultimately expose the truth behind the cold case murder.

　　We're transported back to the tropical island of Saint Marie, and this time with a new Detective Inspector in place - but will DI Mervin Wilson remain in the job for long? Following the recently cracked case of ‘who shot the Santas?’, along with the revelation that his estranged mother has passed away, Mervin is ready to get back home and leave the island for good. But when a case close to the hearts of those at the station presents itself, is he tempted to extend his stay?
　　As Mervin continues to ruffle feathers, the police team pull together to solve some of the island’s most confounding cases yet.

　　两对夫妇发现他们的孩子在出生时就被调包，由此面临道德困境：是继续养育没有血缘的爱子，还是找回他们的亲生孩子？

马丁（马丁·康普斯顿饰）和丽贝卡（安吉丽·莫辛德拉饰）兴奋地离开伦敦，带着两个年幼的孩子搬进了格拉斯哥的一所漂亮的房子。一开始，这个新家看起来完美无暇，但是当他们的邻居简（索利·麦克劳德饰）对丽贝卡发表令人不安的评论时，事实证明这是一个更加令人恐惧的开始。面对每个父母最可怕的噩梦般的指控，当局拒绝介入，马丁和丽贝卡觉得他们无处寻求帮助。

内详

　　一段变心与背叛的过往，两个性格完全不同的女人，三对陷入感情纠葛的年轻男女。在海鸥角的聚会上，从四面八方汇集而来的众人不约而同地感觉到悲剧的降临。
　　1936年的英格兰，网球明星内维尔·斯特兰奇和他的前妻奥黛丽做出了一个不可思议的决定，一起去海鸥角度过一个夏天。海鸥角是他们童年的家，也是内维尔的姨妈特蕾西莲夫人的海滨庄园。
　　谋杀其实早已开始，它默默无声地经历了起因、过程，并在某一特定时间、某一特定地点达到最高潮。谋杀本身就是故事的结局，是零点时刻 。

　　该剧改编自真实事件。1988年12月21日，伦敦飞往纽约的泛美航空103号班机遭遇恐怖袭击，造成259名乘客和机组人员丧生，另有11名洛克比当地居民死亡。Jim Swire博士（科林·费尔斯 Colin Firth 饰）的女儿也在洛克比空难中遇难，他被提名为英国受害者家属的发言人，竭尽全力调查空难真相。

　　一名少年被控杀人，他的双亲、治疗师和负责此案的侦探都想找到背后的真相。

　　BBC续订《SAS：叛逆勇士》第二季。

　　这部惊悚剧以瑞典斯德哥尔摩为背景，公园里发现了一名受过虐待的小男孩的尸体，侦探警司珍妮特·基尔伯格主导这次谋杀案调查。当侦探与冷漠的检察官和官僚警察打交道时，又发现了两名被肢解的儿童尸体，证实了连环杀手的存在。当基尔伯格向治疗师索菲亚·泽特伦德寻求帮助时，这些女性的个人生活和职业生活交织在一起，她们了解到这些谋杀案是瑞典社会中阴险邪恶的明显证据。