Melissa Sanderson is the perfect wife and mother. She dotes on her daughter and lives in her dream home in a quiet cul-de-sac in the suburbs. But looks can be deceiving. Something is amiss in that house - all the neighbors think so. Some say Melissa is having an affair. Others say she’s been drinking too much. Then one night, sirens wake up the whole neighborhood. Melissa Sanderson is dead.

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.

When the body of a woman is found hanging from a tree in her front garden, rookie Detective Morgan Brookes is first on the scene. But Olivia Potter is past saving. And when her husband and daughters cannot be traced, Morgan knows there is more to this tragedy. And then she finds them. Lying huddled together in the dark basement, each of their faces covered with a small cotton cloth, their bodies cold to the touch. But as Morgan kneels beside the family, she realizes that one of the girls is still breathing.

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.

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.

Marissa lives alone in her tiny one-bed apartment. It’s quiet and safe; all she’s ever wanted since the night her mother was killed in front of her. But when the police knock on her door with the news that her last remaining family member has been murdered, she comes face-to-face with the trauma she has spent a lifetime running from.

The white-washed Italian villa is perfect. I thought it might feel odd, living in a stranger’s house for the summer, but as my husband and children swim in the infinity pool, I start to relax. And then, in the back of a wardrobe, I find something that shatters everything.... Sparkling green eyes, square jaw, lopsided smile. A young man with his arm around a beautiful woman. The picture is old and faded, but I’d recognize him anywhere. The man is my husband.

When the body of a teenage runaway is found hidden inside someone else’s grave in a small-town cemetery in the Lake District, an urgent call is made to forensic pathologist Beth Adams. Still traumatised by a recent attempt on her own life, one look at the beautiful girl’s broken body is enough to bring Beth out of hiding for the first time since her attack. She’s the only one who can help her trusted friend, Detective Josh Walker, crack the most shocking case of his career.  

When Detective Madison Harper arrives at a remote summer camp in Shadow Falls, Northern California, her heart breaks for Jenny, the sweet little girl last seen splashing in the lake with her friends before she vanished. Peering into the silent cabins filled with rows of neatly made beds, Madison knows this idyllic place is hiding a terrible secret. 

Detective Lucy Harwin is called out to attend the discovery of a woman’s body in an abandoned, crumbling church and is quickly plunged into a case that will test her leadership skills to the limit. With no leads except the crudely-fashioned crucifix the victim was displayed on, Lucy is at a complete loss. That is, until another body turns up: an elderly woman who devoted her life to the church. Faced with a killer stalking the streets of her small coastal town, while also throwing herself into work to forget the love of her life, Lucy’s first case is turning into a nightmare.

Everyone in the small town of Denton is searching for Isabelle Coleman, a missing 17-year-old girl. All they've found so far is her phone and another girl they didn't even know was missing. Mute and completely unresponsive to the world around her, it's clear this mysterious girl has been damaged beyond repair. All Detective Josie Quinn can get from her is a name: Ramona. Currently suspended from the force for misconduct, Josie takes matters into her own hands as the name leads her to evidence linking the two girls.

A teacher goes missing under suspicious circumstances and a man is murdered at a local reservoir. For Detective Robyn Carter, there's no obvious link between the cases. But as she starts to delve into them, her investigations lead her to Abigail, perfect wife and mother to beautiful little Izzy. What was Abigail's connection to the victims? And why is she receiving threatening messages from an anonymous number?

When Detective Casey White discovers the body of a beautiful teenage girl in a white nightgown near the shoreline in North Carolina’s Outer Banks, a familiar fear floods through her. Could this be Hannah, her sweet, blue-eyed daughter snatched from home 14 years ago? But it only takes one look to confirm that the girl with dark bruising around her throat is another family’s tragedy. Putting her own grief aside, Casey digs into unsolved missing child cases in the area. The victim is Cheryl Parry, one of two little girls taken during a family beach vacation nine years ago. 

When she was just 12 years old, Mackenzie Price came home to find her father bleeding to death on the kitchen floor. She will never forget that night, nor what her mother asked her to do.... Twenty years later, Detective "Mack" Price is back in Lakemore, despite vowing never to return. Determined to atone for the sins of the past, she is unstoppable in her quest for justice. 

When a young boy discovers the body of a woman beneath a thick sheet of ice in a South London park, Detective Erika Foster is called in to lead the murder investigation. The victim, a beautiful young socialite, appeared to have the perfect life. Yet when Erika begins to dig deeper, she starts to connect the dots between the murder and the killings of three prostitutes, all found strangled, hands bound, and dumped in water around London.