DI Sally Parker has a serial killer on her patch. One thing that sets this killer apart from the others she's hunted before: his willingness to leave DNA at each of the crime scenes. It's up to Sally and her partner, DS Jack Blackman, to find out why before the body count rises to double figures. While Sally is engrossed in the investigation, her ex-husband, Darryl, pays a surprise visit to her new home.

Meet Janine Lewis. A single mom of three and Manchester’s newest detective chief inspector. Her cheating husband walked out the day she got promoted. Now she’s six months pregnant with his baby and in charge of her first murder case. The body of a deputy head teacher is found on a lonely allotment. Gutted—his stomach sliced open—and left for dead. The only witnesses are a dying elderly man and a seven-year-old girl. And now the prime suspect has disappeared.

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.

Ava only left her daughter in the pushchair for five minutes. The buckle was fastened, and she was sure it was safe. But when she came downstairs, the door was open and Abi was gone - she walked down the road, past the Lovegoods' house, and was never seen again. A year later, the Lovegoods throw a housewarming party, showing off the results of their renovation. Ava doesn’t want to go. She can’t bear to look down that end of the road, to see the place where Abi vanished, and she doesn’t want to spend time with people who don’t share her grief.

When Matt Ballard was starting out his career, three boys were murdered in the same area, the remote and bleak Gibbet Fen. When the main suspect was killed in a hit-and-run, the killings stopped. But Matt was not satisfied that the real murderer had been caught. Over 25 years later, Matt gets a photo in an unmarked envelope. It's of the Gibbet Fen crime scene. And the picture was taken before the murder took place. More photos arrive, relating to the historic murders, as well as intimate pictures of Matt's very secret private life.

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.

FBI Agent Tara Mills is young, brilliant and new to the force. With a promising career in front of her, she faces the ultimate test when she is assigned the case. It soon proves to be more challenging than she ever could have imagined – an impossible riddle that leaves even her seasoned partner stumped.

He stands in the shadows. Watching them. DI Sara Ramsey's life is about to change forever. Recently moved to the area and in charge of a new team, she's tasked with finding a serial killer terrorising a rural community. Crimes as heinous as this rarely happen in picturesque rural idylls. The community is living in fear, desperate for Sara to keep them safe. When the killer changes his MO and abducts a vulnerable resident, Sara realises she is in a race against time to prevent the killer from claiming yet another victim.

MMA champ-turned-FBI Special Agent and BAU specialist Dakota Steele is as tough as they come—and as brilliant, too, able to crack serial killers that no one else can.

Dr. Morton Handler practiced a strange brand of psychiatry. Among his specialties were fraud, extortion, and sexual manipulation. Handler paid for his sins when he was brutally murdered in his luxurious Pacific Palisades apartment. The police have no leads, but they do have one possible witness: seven-year-old Melody Quinn.

When a prostitute is found murdered in her bedsit, the Metropolitan police set to work finding the perpetrator of this brutal attack. DNA samples lead them straight to known-criminal George Marlow. The police think they've found their man, but things are not quite what they seem....

Marissa Irvine arrives at 14 Tudor Grove, expecting to pick up her young son Milo from his first playdate with a boy at his new school. But the woman who answers the door isn't a mother she recognises. She isn't the nanny. She doesn't have Milo. And so begins every parent's worst nightmare. As news of the disappearance filters through the quiet Dublin suburb and an unexpected suspect is named, whispers start to spread about the women most closely connected to the shocking event. Because only one of them may have taken Milo - but they could all be blamed.

Claire Fontaine is convinced that her ex-husband killed their teenage daughter all those years back and believes he’s capable of killing again. When she sees him move in with another woman, to play stepfather for a girl the same age as the one she lost, Claire tries desperately to warn the new bride of the danger her family is in. But when the woman dismisses her admonishments, she feels she must take matters into her own hands and stop the crime she failed to stop before.

Melissa Slade had it all: beauty, money, a successful husband and beautiful twin babies. But, in the blink of an eye, her perfect life became a nightmare - when she found herself on trial for the murder of her little girls. Jonathan Hunt covered the original Slade Babies case for the local newspaper. Now that new evidence has come to light, Jon's boss wants him back on the story to uncover the truth. With Melissa's appeal date looming, time is running out. And, as Jon gets drawn deeper into a case he’d wanted to forget, he starts to question Melissa's guilt.

FBI Special Agent Maya Gray, 39, has seen it all. She’s one of BAU’s rising stars and the go-to agent for hard-to-crack serial cases. When she receives a handwritten postcard promising to release 12 kidnapped women if she will solve 12 cold cases, she assumes it’s a hoax.

A body is discovered with her throat cut and her daughter believed missing. DCI Foster quickly sees parallels with the disappearance of a teenager three years earlier. With hopes fading, he calls on genealogist Nigel Barnes to piece together the links between the families of the two girls. The trail leads back to 1890, and a young couple fleeing a terrible crime in their past....

Ten years ago... Special Agent Jess Harris has closed another tough case, and now she's determined to make it home to spend Christmas with her only family, her sister. Jess needs a break, and taking it far away from work is the only way to keep her mind off the many faces of evil waiting in the stack of case files on her desk. Running into the past wasn't part of the plan... Daniel Burnett was Jess' first love. She'd fallen hard for him in high school. Together they'd gone off to college with big dreams.

Yasuko Hanaoka is a divorced, single mother who thought she had finally escaped her abusive ex-husband Togashi. When he shows up one day to extort money from her, threatening both her and her teenaged daughter Misato, the situation quickly escalates into violence and Togashi ends up dead on her apartment floor.

On a remote Highland mountain, the body of Elaine Buxton is burning. All that will be left to identify the respected lawyer are her teeth and a fragment of clothing. In the concealed back room of a house in Edinburgh, the real Elaine Buxton screams into the darkness…. Detective Inspector Luc Callanach has barely set foot in his new office when Elaine’s missing persons case is escalated to a murder investigation. Having left behind a promising career at Interpol, he’s eager to prove himself to his new team.

The hunt for a serial killer unearths an unsolved cold case from over 60 years ago. Young girls are being abducted and murdered in the Northeast. Out of favour detective constable Ian Bradshaw struggles to find any leads - and fears that the only thing this investigation will unravel is himself. Journalist Tom Carney is suspended by his London tabloid and returns to his home village in County Durham. Helen Norton is the reporter who replaced Tom on the local newspaper. Together they are drawn into a case that will change their lives forever.

At a university in Reykjavík, the body of a young German student is discovered, his eyes cut out and strange symbols carved into his chest. Police waste no time in making an arrest, but the victim's family isn't convinced that the right man is in custody. They ask Thóra Gudmundsdóttir, an attorney and single mother of two, to investigate. It isn't long before Thóra and her associate, Matthew Reich, uncover the deceased student's obsession with Iceland's grisly history of torture, execution, and witch hunts.

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.

The real nightmare starts when her daughter is returned.... A bone-chilling psychological thriller that will suit fans of Gone Girl by Gillian Flynn, Daughter by Jane Shemilt, and The Girl on the Train by Paula Hawkins. A girl is missing. Five years old, taken from outside her school. She has vanished, traceless. The police are at a loss; her parents are beyond grief. Their daughter is lost forever, perhaps dead, perhaps enslaved.

On the day she returns to active duty with the Serial Crimes Unit, Detective Inspector Anjelica Henley is called to a crime scene. Dismembered body parts from two victims have been found by the river. The modus operandi bears a striking resemblance to Peter Olivier, the notorious Jigsaw Killer, who has spent the past two years behind bars. When he learns that someone is co-opting his grisly signature - the arrangement of victims’ limbs in puzzle-piece shapes - he decides to take matters into his own hands.

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.

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.

Everyone wants a piece of millionaire Bennett Marshfield, owner of Marshfield Manor, but now it's up to new curator Grace Wheaton and handsome groundskeeper Jack Embers to protect dear old Marshfield. But to do this, they'll have to investigate a botched Ponzi scheme, some torrid Wheaton family secrets-and sour grapes out for revenge.

When Mattie Winston catches her husband, Dr. David Winston, receiving some very special loving care from RN Karen Owenby, she quits her job and moves out. Mattie's best friend, Izzy, offers her a place to stay and suggests she'd be a natural as deputy coroner. Now, instead of taking patients' pulses, Mattie's weighing their hearts and livers. But Mattie's first homicide call turns out to be for none other than Nurse Karen, and even though she saw her ex in a heated argument with the newly deceased the night before, she refuses to believe David could be a killer.

Detective Inspector Munro is a burly Scottish policeman who doesn’t suffer fools gladly. Detective Sergeant West is an intelligent young woman, new to the force, with a lot to prove. When a missing person case lands on their desks, Munro is skeptical there is much to it. But their investigation soon comes to some strange findings, and before long a body is found. With a serial killer on their hands, they must act fast to trace a woman placed at the scene of the crime. Yet discovering her true identity, let alone finding her, proves difficult. And as the plot thickens they realise the crime is far graver than either of them could have imagined.

Abby Cooper is a P.I., psychic intuitive. But her insight failed her when she didn't foresee the death of one of her clients - or that the lead investigator for the case is the gorgeous blind date she just met. Now, with the police suspicious of her abilities and a killer on the loose, Abby's future looks more uncertain than ever.