Detective Sergeant Chris Waters got the call at 05.29 that July morning. This is it, said DCI Reeve, you'll be first there, it's all yours, you're the crime scene manager. Suddenly, after months of waiting and wondering, Waters finds himself in at the deep end, and alone at the scene of a puzzling murder. As the investigation proceeds, the detectives at Kings Lake Central find themselves visiting familiar places and talking to some familiar faces, while old enmities reappear in the incident room. Before this is over, Chris Waters will need to make a career-changing decision.

When Nigel Baxter, a middle-aged married banker with an unremarkable past, is found dead in the bath of a plush hotel suite, his wrists slit, it looks as if he's taken his own life. At first. But when Detective Inspector Daniel Riley is assigned to the case, he soon realises all isn't as it first appears to be. When a postmortem shows Baxter was poisoned, Riley suspects foul play. And then there's the odd addition of a teddy bear left at the crime scene....

Esme is a start-up success who runs her own successful media company and heads up a series of investigative podcasts. She also has a beautiful home, where she lives with her sister, Michelle, and her son, Zachary. Sure, there’s an ex-husband hanging around - Owen likes to pop round a bit too often - but everything is civilised and amicable. She has life all tied up. But Esme knows that any successful podcaster is only as good as her last story, so she sets out on a new series of interviews to get to the truth behind Simone Fischer’s high-profile murder of her husband.

When a body is discovered, bled dry on a beach, the sleepy seaside town of Weston-super-Mare wakes up to a nightmare. For Detective Inspector Louise Blackwell, recently transferred to the town she last saw as a child, it’s her first case on the job. The victim - Veronica Lloyd, an elderly volunteer at a local church - has puncture wounds to her hands. When a priest is found killed in a nearby church in a similarly grisly condition, it becomes clear that Blackwell is dealing with a righteous and bloody murderer. But the victims aren’t random.

In North Devon, where two rivers converge and run into the sea, Detective Matthew Venn stands outside the church as his estranged father’s funeral takes place. On the day Matthew left the strict evangelical community he grew up in, he lost his family, too. Now, as he turns and walks away again, he receives a call from one of his team. A body has been found on the beach nearby: a man with a tattoo of an albatross on his neck, stabbed to death. The case calls Matthew back to the people and places of his past, as deadly secrets hidden at their hearts are revealed.

When Anna Crowe is killed in her sleep alongside her children, the quiet local community of Corbally is shocked. It’s also a chilling reminder of when her sister, Janey, disappeared as a baby, 29 years ago, never to be seen again. Detective Iris Locke is assigned to the case, and, after a year undercover which ended in failure when her cover got blown, she’s desperate to make her mark - and to live up to the reputation of her ex-cop father, the former head of the Limerick Murder Squad.

The sudden death of a pupil in Fleat House at St Stephen’s—a small private boarding school in deepest Norfolk—is a shocking event that the headmaster is very keen to call a tragic accident. But the local police cannot rule out foul play and the case prompts the return of high-flying Detective Inspector Jazmine ‘Jazz’ Hunter to the force. Jazz has her own private reasons for stepping away from her police career in London, and reluctantly agrees to front the investigation as a favour to her old boss.

In the tranquil northern seaside town of Scarborough, a student is found cruelly murdered. For months, the investigators are in the dark - until they are faced with a copycat crime. The investigation continues as they struggle to establish a connection between the two victims. Ambitious detective Valerie Almond clings to the all too obvious - a rift within the family of the second victim - but there is far more to the case than it first appears. Soon Valerie is led toward a dark secret inextricably linked to the evacuation of children to Scarborough during World War II.

For Mrs Pargeter, it is a matter of principle that she should complete any of her late husband's unfinished business. Amongst his many bequests, perhaps the most valuable is his little black book, in which he listed all the people who ever worked for him, with details of their particular skill sets. This means that whenever Mrs P has a crime to solve, she can readily contact someone with the relevant expertise.

Ellen Curtis runs her own business helping people who are running out of space. As a declutterer, she is used to encountering all sorts of weird and wonderful objects in the course of her work. What she has never before encountered is a dead body.

As I sit in her dimly lit bedroom, surrounded by flickering candles, I feel the crushing weight of my daughter’s absence. It's been two years since Layla was murdered. The police have searched tirelessly for her killer, but they've found nothing – it's like whoever did it vanished into thin air. My once-perfect marriage is falling apart, we can hardly look at each other anymore. Our ten-year-old son Gale is struggling. He’s changed since she died. He’s more secretive and also…

Recently retired, Carole Seddon is residing in Fethering in the cottage she purchased with her ex-husband. There she maintains a quiet and sensible life with the companionship of Gulliver, her Labrador retriever. But everything changes when she and Gulliver, while taking their daily constitutional, find a corpse on the beach. What's more, there are two wounds on its neck. The body mysteriously disappears and the police dismiss Carole as a befuddled middle-aged woman.

After an elite criminal profiling unit is shut down amid a storm of scandal and mismanagement, only one person emerges unscathed. Forensic psychiatrist Doctor Alexander Gregory has a reputation for being able to step inside the darkest minds to uncover whatever secrets lie hidden there, and soon enough he finds himself drawn into the murky world of murder investigation. In the beautiful hills of County Mayo, Ireland, a killer is on the loose. Panic has a stranglehold on its rural community, and the Garda are running out of time.

DS George Cross can be rude, difficult and awkward with people. But his unfailing logic and dogged pursuit of the truth means his conviction rate is the best on the force. So when his police colleagues dismiss the death of a man as a squabble among Bristol's homeless community, Detective Sergeant George Cross is not convinced.

St Benjamin's Medical School is the greatest of its kind, any death occurring within its walls would have created ripples within the academic world, but the death of Nikki Exner is far from being ordinary. Raped, and then grotesquely executed, her theatrical murder horrifies everyone. John Eisenmenger, a former forensic pathologist, finds himself dragged unwillingly into the case. Teaming up with solicitor Helena Flemming, Eisenmenger sets out to discover what really did happen to Nikki Exner.