When a toddler goes missing in the middle of a bustling Bradford park in broad daylight, Detective Daniel Ward is put on the case. It ought to be an open and shut investigation, but the hours tick by, and Millie Thompson is nowhere to be found. There’s only one conclusion DI Ward can come to: She was taken. When a known child-killer is spotted in the vicinity, Ward fears the worst. He has to catch up with the only lead he has before the infamous Hunters - merciless vigilante justice seekers who will seek retribution at any cost - catch up with his suspect first.

When a high-flying adman is stabbed to death on a company weekend in the English Lake District, local detective Daniel Skelgill finds himself wrenched from his rural Cumbrian comfort zone. As the investigation unfolds, DI Skelgill is led a merry dance between London and Edinburgh, at every turn confronted by uncooperative suspects—colleagues, wife and lovers of the deceased—each of whom is possessed of motive and opportunity. Is this a crime of passion, a professional hit, or a cleverly calculated killing borne out of greed and jealousy?

Met cop DI Rob Marshall is hot on the trail of the serial killer known as the Chameleon, who has abducted, tortured and killed a series of young women in Northwest London. As they close in, the Chameleon—who switches identity to get close to his victims—shoots Marshall’s partner and escapes.

D.I. Duncan McAdam is dispatched home to the Misty Isle. A body has been found buried in a remote location on the Waternish peninsula. Well-preserved in the peat, Isla Matheson—missing for the better part of two decades—is revealed to a shocked island community. A teenage runaway is dead...and no one is talking.

The story opens with the apparently accidental drowning of a sixth form student in the Norfolk countryside. As a matter of routine, or so it seems, the case passes across the desk of Detective Sergeant Smith, recently returned to work after an internal investigation into another case that has led to tensions between officers at Kings Lake police headquarters. As an ex-DCI, Smith could have retired by now, and it is clear that some of his superiors wish that he would do so.

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?

A woman is found in a local cemetery, crushed to death under a gravestone. A production company is there, filming the remake of a classic sci-fi TV show on the grounds, making the investigation more difficult for DCI Harry McNeil. It's his first day in charge of the cold case unit in Edinburgh. After spending four years in Professional Standards, he has little choice but to take the promotion.

Haunted by his inability to track down and save his missing wife, DCI Robert Kett leaves the Metropolitan Police behind and moves to Norwich with his three young children, hoping to heal their broken family. But his newfound peace doesn’t last. Two newspaper delivery girls have gone missing in the city, and the clues point to a serial kidnapper. Kett is dragged into the centre of one of the darkest cases of his career - a case that pits him head-to-head against a horrifying evil.

The head of Scotland’s most powerful crime family is brutally murdered, his body dumped inside an ancient grave in a remote cemetery. Detectives Max Craigie and Janie Calder arrive at the scene, a small town where everyone has secrets to hide. They soon realise this murder is part of a blood feud between two Scottish families that stretches back to the 1800s. One thing’s for certain: it might be the latest killing, but it won’t be the last.

A sinking boat is spotted off the South Coast. Waiting onboard is a grisly discovery. DCI Boyd, recently relocated from London to Hastings, is now with the East Sussex CID, and his first case is that of a local businessman and his new young wife, missing in the English Channel. All that remains of them is a grim scene aboard their half-submerged yacht and a digital trail of clues that could put Boyd and his daughter, Emma, in danger.

"Are you my mummy?" Tessa Markham returns home to find a child in her kitchen. He thinks she’s his mother. But Tessa doesn’t have any children. Not anymore. She doesn’t know who the little boy is or how he got there. After contacting the police, Tessa is suspected of taking the mystery child. Her whole life is turned upside down. And then her husband reveals a secret of his own. Tessa isn’t sure what to believe or who to trust. Because someone is lying. To find out who, she must confront her painful past. But is the truth more dangerous than Tessa realises?

DI Amy Winter is hoping to follow in the footsteps of her highly respected police officer father. But when a letter arrives from the prison cell of Lillian Grimes, one half of a notorious husband-and-wife serial-killer team, it contains a revelation that will tear her life apart. Responsible for a string of heinous killings decades ago, Lillian is pure evil. A psychopathic murderer. And Amy’s biological mother. Now, she is ready to reveal the location of three of her victims - but only if Amy plays along with her twisted game.

When a woman's body is discovered in a cathedral and hours later a young man is found hanging from a tree outside his home, Detective Lottie Parker is called in to lead the investigation. Both bodies have the same distinctive tattoo clumsily inscribed on their legs. It's clear the pair are connected, but how? The trail leads Lottie to St Angela's, a former children's home, with a dark connection to her own family history. Suddenly the case just got personal.

Detective Chief Inspector Harry Grimm is forced to take leave from Bristol’s Major Investigations Team when his boss, tired of Harry chasing the ghost of his murderous father, sends him north on secondment. Used to city life and high stress, Harry fears his life will now be spent handing out speeding tickets, finding lost sheep, and directing tourists. But when a local teenager runs away, Harry finds himself pulled into an investigation much worse than anyone could have ever expected.

Crimebusting duo DI Jackman and DS Evans are back, solving another crime that will make your skin crawl. Twenty years ago: a farmer and his wife are cut to pieces by a ruthless serial killer. Now: a woman is viciously stabbed to death in the upmarket kitchen of her beautiful house on the edge of the marshes. Then a man called Daniel Kinder walks into Saltern police station and confesses to the murder. But DI Rowan Jackman and DS Marie Evans of the Fenland Constabulary soon discover that there is a lot more to Daniel than meets the eye.

Six months ago, Charlotte almost lost everything. Now, she’s determined to keep her daughter, Elle, safe. So when local girls close to Elle in age and appearance begin to go missing, it’s her worst nightmare. Charlotte’s fears are confirmed when a frantic search becomes a shocking murder investigation. The girls’ bodies have been found - half-buried, and with traces of mud and wildflowers under their fingernails. As Charlotte’s obsession with keeping her daughter close pushes her marriage to the brink, local DI Madeleine Wood embarks on a gruelling search for the killer.

Detective Constable Janet Scott is subtle and reliable, a diplomatic thinker with a wry sense of humor. She's put in the time and seen it all, but has no desire for the boss's job—she loves her own too much. Rachel Bailey couldn't be more different—she's energetic, impulsive, and ambitious, and has just been transferred to the Manchester murder squad. Their commander thinks Rachel's intuition could make her a great cop, but has reservations about her shoot-first-think-later approach, so she partners her with Janet.

Another freezing winter descends in seeming peace upon the Northern Ontario lake where realtor Belle Palmer lives genteelly with her dog, tropical fishes and classic film collection. But the snow-laden tranquility is tragically disturbed when a good friend is lost in a freak snowmobile accident on an isolated lake. Or so it seems. Belle and others suspect foul play, but a motive and a criminal prove hard to find. Resort owners, anti-environmentalists and the new local drug dealers may all have had reason to want Jim Burian quietly removed, and information isn't forthcoming.

Dear Elizabeth, I've been watching you. I hope to see you...soon. Liz Cafferky is on the up. Rescued from her dark past by the owner of a drop-in centre for older men, Liz soon finds herself as the charity's face - and the unwilling darling of the Dublin media. Amidst her claustrophobic fame, Liz barely notices a letter from a new fan. But then one of the centre's clients is brutally murdered, and Elizabeth receives another, more sinister note. Running from her own ghosts, Liz is too scared to go to the police.

A week's holiday in a luxurious hotel is just what Scotland Yard's Superintendent Duncan Kincaid needs. But his vacation ends dramatically with the discovery of a dead body in the whirlpool bath. Despite a suspicious lack of cooperation from the local constabulary, Kincaid's keen sense of duty won't allow him to ignore the heinous crime, impelling him to send for his enthusiastic young assistant, Sergeant Gemma James. But the stakes are raised significantly when a second murder occurs....

Margot Lewis is a teacher at an exclusive high school in the English university town of Cambridge. In her spare time, she writes an advice column, "Dear Amy", for the local newspaper. When one of Margot's students, 15-year-old Katie, disappears, the school and the town fear the worst. And then Margot gets a "Dear Amy" letter unlike any of the ones she's received before. It's a desperate plea for rescue from a girl who says she is being held captive and in terrible danger - a girl called Bethan Avery, who was abducted from the local area 20 years ago and never found.

A violent rapist is attacking women, leaving them for dead on south London streets. When young policewoman Maeve Kerrigan responds to a domestic disturbance, she's horrified to stumble across the latest victim. But as a new recruit - and a female to boot - she'll have to face down not only her own nerves but rampant sexism from her colleagues if she wants to be taken seriously enough to even assist on the case.

When Professor Alan Tunbridge is discovered in his office with his throat slashed, the suspects start queuing up. The brilliant but unpleasant microbiologist had a genius for making enemies. For Warren Jones, newly appointed Detective Chief Inspector to the Middlesbury force, a high-profile murder is the ideal opportunity. He’s determined to run a thorough and professional investigation but political pressure to resolve the case quickly and tensions in the office and at home make life anything but easy.

Erica James has spent the past three years as a skip tracer, hunting down others and hoping one day it will lead to her kidnapped daughter. Now she has a new suspect - Max Powell's missing sister. Max, a private investigator, has found evidence that connects the two missing girls, and together, he and Erica search for answers. The closer they get to finding answers, the stronger their feelings for each other become. But the kidnapper will stop at nothing - including murder - to keep them from finding Erica's daughter.

Time's up. You're Next. "All he had to do was name the woman he wanted. It was that easy. They would do all the hard work. "Detective Sergeant Mark 'Heck' Heckenburg is investigating the disappearance of 38 different women. Each one was happy and successful until they vanished without a trace. Desperate to find her missing sister, Lauren Wraxford seeks out Heck's help.