Was the biggest case of his career the worst mistake he ever made? Ten years ago, DCI Jack Logan stopped the serial child-killer dubbed "Mister Whisper", earning himself a commendation, a drinking problem, and a broken marriage in the process...When another child disappears a hundred miles north in the Highlands, Jack is sent to lead the investigation and bring the boy home. But as similarities between the two cases grow, could it be that Jack caught the wrong man all those years ago?

Five years ago, DCI John Lomond led the search for notorious Glasgow child-killer ‘The Sandman', until personal tragedy forced him off the case. In Lomond's absence, the killer was never found. Now, with nothing but work left in his life, Lomond remains obsessed with the case–despite the nightmares it brings. When a child is abducted in similar Sandman fashion from an affluent Glasgow suburb, Lomond is brought in to find them before it's too late.

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.

Owen Pick’s life is falling apart. In his 30s and living in his aunt’s spare bedroom, he has just been suspended from his job as a teacher after accusations of sexual misconduct - accusations he strongly denies. Searching for professional advice online, he is inadvertently sucked into the dark world of incel forums, where he meets a charismatic and mysterious figure. Across the street from Owen lives the Fours family, headed by mom Cate, a physiotherapist, and dad Roan, a child psychologist. But the Fours family have a bad feeling about their neighbor Owen.

Probationary constable Peter Grant dreams of being a detective in London's Metropolitan Police. Too bad his superior plans to assign him to the Case Progression Unit, where the biggest threat he'll face is a paper cut. But Peter's prospects change in the aftermath of a puzzling murder, when he gains exclusive information from an eyewitness who happens to be a ghost. Peter's ability to speak with the lingering dead brings him to the attention of Detective Chief Inspector Thomas Nightingale....

One year ago, Lucy’s sister, Nicki, left to meet friends at a pub in Dublin and never came home. The third Irish woman to vanish inexplicably in as many years, the agony of not knowing what happened that night has turned Lucy’s life into a waking nightmare. So, she’s going to take matters into her own hands. Angela works as a paper-pusher in the Missing Persons Unit, but wants nothing more than to be a fully fledged member of An Garda Síochána, the Irish police force. With the investigation into the missing women stalled, she begins pulling on a thread that could break the case wide open.

Barely a month since his promotion to Inspector, DI Ford is called in to investigate the murder of a young nurse and her son in a small flat in Salisbury. There are few clues, and no apparent motive, but Ford can sense that there's a serial killer at work. After all, he knows from brutal personal experience how killers cover their tracks.... It's been six years since Ford lost his wife in a climbing accident - an accident he caused. He is desperate to keep the truth hidden, especially from his son, Sam.

Dr. Margo Dunlop is at a crossroads. Her adoptive mom just passed away, and Margo misses her so much she can't begin to empty the house - or, it seems, get her brother on the phone. Not to mention she's newly single, secretly pregnant, and worried about her best friend's dangerous relationship. In an effort to cheer herself up she goes in search of her birth mother. Instead she finds Nikki, her mother's sister. Aunt Nikki isn't what Margo expects, and she brings upsetting news: Margo's mother is dead.

Sixteen years ago, Lizzie Armitage woke to find her newborn baby gone. Just days later, Lizzie was dead. Her sister Paula swore she would do everything she could to find the child. If she hadn’t promised to keep Lizzie's pregnancy secret, maybe the baby wouldn’t have disappeared. And maybe Lizzie would still be alive. But, in nearly a decade, Paula’s never found any trace. Until now...

Felix Pink is retired. Widowed for more than a decade and a painfully literal thinker, he has led a life of routine. He occupies himself volunteering as an Exiteer - someone who sits with terminally ill people as they die by suicide, assisting with logistics and lending moral support. When Felix lets himself into Number 3 Black Lane, he’s there to keep a dying man company as he takes his final breath. But just 15 minutes later, Felix is on the run from the police. Now he must discover whether what went wrong was a simple mistake - or deliberate, a murder.

DI Kate Young is on leave. She’s the force’s best detective, but her bosses know she’s under pressure, on medication and overcoming trauma. So after her bad judgement call leads to a narrowly averted public disaster, they’re sure all she needs is a rest. But when Staffordshire Police summon her back to work on a murder case, it’s a harder, more suspicious Kate Young who returns. With a new ruthlessness, she sets about tracking down a clinical, calculating serial killer who is torturing victims and leaving clues to taunt the police.

Ali and Christopher Tolfrey's one-year-old daughter, Eden, is abducted whilst in the care of Ali’s best-friend. Snatched in broad daylight from Bushy Park on a trip to the swings, Eden disappears without a trace. Brooke Simmons regains consciousness, dazed from a blow to the head, to find Eden, her best friend's child, missing. Someone has taken Eden, and Brooke knows who. But it's a secret she can't share with Ali or the police without revealing the web of deceit she's spun.

Set against the backdrop of an eerie island town in the dead of winter, The Wife and the Widow is an unsettling thriller told from two perspectives: Kate, a widow whose grief is compounded by what she learns about her dead husband’s secret life; and Abby, an island local whose world is turned upside when she’s forced to confront the evidence of her husband’s guilt. But nothing on this island is quite as it seems, and only when these women come together can they discover the whole story about the men in their lives.

When Victoria Davies was pushed off her stately home's roof in 2001, all evidence pointed to her husband Michael. But now, 20 years later a letter has appeared, written by Victoria before her death; a letter that was never received, and a letter that brings new suspects into the fray; Labor MPs Shaun Donnal, Andrew MacIntyre, and Charles Baker.

I’m Lucy, and I have a secret I have a beautiful home that I’m desperate to escape. But that’s not my secret. I tell my friends I’ve never wanted children when I always have. But that’s not my secret. My husband is a celebrated surgeon who tries to control me. But that’s not my secret. Adele knows. Once upon a time, I knew everything about her and she knew everything about me. Best friends forever. But now our secret is beginning to surface. I can trust her more than anyone. We made a pact. And she’s never do anything to hurt me. Would she?