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?

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.

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....

Traumatised by the death of a child in her care, top London paediatrician Claire seeks refuge on remote Selkie Island in the wilds of the Irish Sea with her husband Daniel and their baby daughter Kitty. Hidden away in Daniel’s old family home, Claire hopes to be as cut off from her guilt as she is from the mainland, but can she find peace in a place so full of its own secrets? Twenty years earlier, Daniel’s parents left the island in a boat and never made it to the mainland.

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.

Callum is lured to an isolated boathouse by an attractive older woman. When she gets him alone, she knocks him out with a single blow. Surrounded by hills and lakes, Still Waters is home to a close-knit community of wealthy retirees. It's an unlikely setting for violence. The police don't take Callum's disappearance seriously: he's 24-years-old, after all. But Callum's mother, a Still Waters resident, knows that something is very wrong. Then a body is discovered floating in the lake. Head bashed in. But it's not Callum. And someone tweets: Come out to play one last time, Alice. 

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.

When Detective Maria Miller walks up creaking stairs into the attic of the old brownstone she senses this isn’t an ordinary crime scene. The brutality of the murder is enough to shock even an experienced detective like Maria. But there’s something else. An unsettling presence seems to lurk in the shadows sending a chill through Maria’s bones, making her desperate to run back down the stairs and never return. The killing is identical to the murder of an actress sixty years before, a crime that tore a family apart and sent shockwaves through New York City.

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.

Two-year-old Abigail is fast asleep in the back of the car, clutching her little red lion. Tony, her father, steps out onto the pavement. The man he’s meeting punches him in the face, knocking him to the ground. Before it all goes black, Tony sees his car speed away—with his little girl inside. When he finally gets home after the worst day of his life, the house is empty. His wife is gone too. The place is ransacked and the kitchen is streaked with blood.