The series begins when suspected human remains are unvered on Whitney Marsh - Jess and Sunny are immediately called to the scene, abandoning their evening plans to Jess’s husband’s chagrin. Dr Balbe’s analysis reveals that the remains are relatively recent and suggest a grim nclusion: the body was placed there already dismembered. With this insight, Jess and Sunny intensify their search certain that other body ps may not be far away.
　　As the investigation unfolds, viewers are introduced to a diverse new cast of characters: Melinda Rii, an outspoken television mentator based in Ireland; Min ‘My’ 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 nnected by their pasts. It’s up to Jess, Sunny, and their dedicated team to unver these hidden links and ultimately expose the truth behind the ld case murder.