Four-year-old Ellen is snatched by a stranger in the dead of night. Her devastated mother, Nicole, receives four identical phials and a threatening note in a familiar scrawl that chills her to the bone. But she always knew this would happen. She’s been expecting it for years. According to the note, one of the phials is poisoned. Nicole is given a deadly challenge: If she drinks one, the sadistic kidnapper will notify the police of Ellen’s location. The sender claims to be Luka Volkov, but Luka is supposed to be dead, killed long ago in a fire that haunts all those involved.

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.

Three Chicago women have been found strangled, embalmed, and posed as if still alive. Doubting the findings of the local PD’s profiler, the FBI calls on forensic psychologist Zoe Bentley to investigate. Zoe quickly gets off on the wrong foot with her new partner, Special Agent Tatum Gray. Zoe’s a hunter, intense and focused; Tatum’s a smug maverick with little respect for the rules.

Ten years ago, the Harper family disappeared. Their deserted cottage was left with the water running, the television playing cartoons, the oven ready for baking. The doors were locked from the inside. Overnight, the sleepy village of Nighbrook became notorious as the scene of the unsolved mystery of the decade, an epicentre for ghoulish media speculation. For crime journalist Naomi, solving the case has turned into an obsession. So now, with Ivy Cottage finally listed for sale, it’s her chance to mount an investigation like no other.

In the remote forests of Stillwater, Minnesota, you can scream for days and no one will hear you. So when the bodies of two 15-year-old girls are discovered frozen in the snow, Special Agent Nikki Hunt is sure the killer is local: Someone knew where to hide the girls and thought they would never be found. Though Nikki hasn’t been home in 20 years, she knows she must take over the case.

Women who gave a child up for adoption are being killed. A knock at their front door begins a nightmare from which they will never wake up. For Detective Ruby Preston and her team, it is a race against time to connect the dots before the killer can strike again. But when Ruby receives a sinister email, the case takes a terrifying personal twist.

As DC Jennifer Knight investigates a routine stabbing in the quiet town of Haven, she is shocked by what seems like a personal message from beyond the grave. When more bodies are found, Jennifer is convinced the killings are somehow linked. What she discovers is more chilling than she could possibly imagine. The murders mirror those of the notorious Grim Reaper - from over 20 years ago. A killer her mother helped convict.

Emma is a loving wife, a devoted mother...and an involuntary killer. For years she's been hiding the dead body of the teacher who seduced her as a teen. It's a secret that might have stayed buried if only her life had been less perfect. A promotion for Emma's husband, Alex, means they can finally move to a bigger home with their young son. But with a buyer lined up for their old house, Emma can't leave without destroying every last trace of her final revenge....

Blackhall Manor has witnessed many dark crimes, long before five teenage girls break in to play the Midnight Game. It was supposed to be a game, but only four girls come home. Detective Sarah Noble has just returned to the force, and no one knows more about Blackhall Manor than her. Except perhaps Elliott Carter, who is only seven but has seen things in his dreams most adults could never imagine. It's a case that will bring them together and shake Sarah to her core. Will she be ready to meet the Midnight Man?

Roz is young, penniless and pregnant. All she wants is to be the perfect mother to her child, but the more she thinks about her own chaotic upbringing, the more certain she is that the best life for her baby is as far away as possible from her hometown in Ireland. Determined to do the right thing, Roz joins an elite adoption service and can’t believe her luck. Within days she is jetting to New York to meet a celebrity power couple desperate for a child of their own.

To Rebecca it was a brave decision that led to her freedom from domestic abuse. To Solomon it was the ultimate betrayal. It's been ten years since Rebecca's testimony saw Solomon locked away. Enough time for the nightmares to recede, the nerves to relax; enough time to rebuild her life and put the past behind her. Then one day a phone rings in her bedroom - but it's not her phone.

It’s the worst possible time for Detective Kerri Devlin to be involved in an all-consuming double-homicide case. She’s locked in a bitter struggle with her ex-husband and teenage daughter, and her reckless new partner is anything but trustworthy. Still, she has a job to do: There’s a killer at large, and a pregnant woman has gone missing. Once Devlin and her partner get to work, they quickly unearth secrets involving Birmingham’s most esteemed citizens. Each new layer of the investigation brings Devlin closer to the killer and the missing woman.

For three years, Detective Jude Fontaine was kept from the outside world. Held in an underground cell, her only contact was with her sadistic captor, and reading his face was her entire existence. Learning his every line, every movement, and every flicker of thought is what kept her alive. After her experience with isolation and torture, she is left with a fierce desire for justice - and a heightened ability to interpret the body language of both the living and the dead.

Struggling to balance her personal and professional life, young DS Becca Vincent has landed the biggest case of her career - and she knows that it will make or break her. But she can’t catch the culprit alone. Together with facial recognition expert Joe Russell, she strives to get a lead on the elusive murderer, who is always one step ahead of them. Time is not on their side. The body count is rising, and the attacks are striking closer and closer to home. Can Becca and Joe uncover the connection between the murders before the killer strikes the last name from his list?

Five figures gather 'round a shallow grave. They had all taken turns to dig. An adult-sized hole would have taken longer. An innocent life had been taken, but the pact had been made. Their secrets would be buried, bound in blood. Years later a headmistress is found brutally strangled, the first in a spate of gruesome murders that shock the Black Country.