Kit Darling is a maid with a snooping problem. She’s the “invisible girl,” compelled to poke into her wealthy clients’ closely guarded lives. It’s a harmless hobby until Kit sees something she can’t unsee in the home of her brand-new clients: a secret so dark it could destroy the privileged couple expecting their first child. This makes Kit dangerous to the couple. In turn, it makes the couple—who might kill to keep their secret—dangerous to Kit.

It was an ordinary school day, the day I lost my little brother. One moment he was on the roundabout and then was gone. Gone. Missing. They all blamed me. I was in charge. Even though I was only ten years old. They sent me away. The hurt, the shame, the questions. The not knowing. I tried to move on. It’s been nineteen years in exile and now somebody wants me back. Someone with a dark secret.

When young London professional Alex Evans is informed that his sister's body has been pulled from an icy lake in Northern Lapland, he assumes his irresponsible sister accidentally drowned. He travels to the wealthy winter resort where Vicky worked as a tour guide and meets Agatha Koskinen, the detective in charge. Agatha is a no-nonsense single mother of three who already thinks there's more to Vicky's case than meets the eye. As the two form an unlikely alliance, Alex also begins to suspect the small town where his sister lived and died is harbouring secrets.

When her sister is found dead in a Baltimore hotel room, reporter Val Ritter’s world is turned upside down. An empty pill bottle at the scene leads the police to believe the cause of death is suicide. With little more than her own conviction, Val teams up with Terry Martin, a retired detective who has his own personal interest in the case, to prove that something more sinister is possible.

When actress and model Allison Langley leaves her former rockstar husband in the middle of the night, it’s all her Oak Hill neighbors can talk about. But the gossip comes to an abrupt halt when five-year-old Billy Barnes goes missing on his walk home from kindergarten. Billy’s mother, Rachel, blames herself for being at work and letting her only child walk alone. Cassidy, Billy’s teenage babysitter, was also late to arrive on the afternoon he disappeared and blames herself for his disappearance.

Still grieving his toddler’s death, Detective Dan Brennan of the Philadelphia P.D. returns to the force and is assigned to investigate a socialite’s fatal fall down her mansion’s staircase. But the open-and-shut case is turned on its head when the victim’s daughter alleges her mother was murdered. Her evidence? The dead. The vintage photographs of past murder victims displayed on the mansion’s walls have told her so. Compelled to listen to the reclusive teen’s pleas, Brennan begins to investigate her mother’s death and the disturbing secrets hidden in that house.

Becoming a stepmother is the best thing that ever happened to me. My favorite part of every day is picking Charlie up from school, watching her little rucksack bounce behind her as she skips over for a hug. I love the feel of those thin freckled arms around my waist. After a few rocky months of panic attacks when her mother deserted her, Charlie is flourishing. But the day Charlie’s mother Bronwyn returns without warning—showering Charlie with gifts and making promises she can’t keep—fear ripples through me. She doesn’t know just how far I will go to protect that little girl.

Beth and Tom Hardcastle are the envy of their neighbourhood—they have the perfect marriage, the perfect house, the perfect family. When the police knock on their door one evening, Beth panics. Tom should be back from work by now—what if he’s crashed his car? She fears the worst. But the worst is beyond imagining. As the interrogation begins, Beth will find herself questioning everything she believed about her husband.

Frances Brookman has just received the phone call every mother dreads. Her daughter Naomi has been in a life-threatening accident. As she races to the hospital, Frances catches sight of a child in another car – a girl screaming for help. It's a split-second thing and looks can be deceptive. She could follow the car, but can she live with the delay getting to her daughter? If she does nothing, can she live with herself?

Rachel Drake is on the run from the man who killed her husband. She never leaves her safe haven in an anonymous doorman building, until one night a phone call sends her running. On her way to the garage, she is murdered in the elevator. But her story doesn’t end there.

After losing her job and boyfriend, Jan Hamlin is in desperate need of a fresh start. So she jumps at the chance to rent a secluded cottage on the edge of Coleshaw Woods. Very quickly though, things take a dark turn. At night, Jan hears strange noises, and faint taps at the window. Something, or someone, is out there.

Lynn Naismith gave up the job she loved when she married Ed, the love of her life, but it was worth it for the happy years they enjoyed together. Now, 10 years on, Ed has been diagnosed with early onset dementia, and things start to happen - things more sinister than missing keys and lost words. As some memories are forgotten, others, long buried, begin to surface...and Lynn’s perfect world begins to crumble. But is it Ed’s mind playing tricks, or hers....?

John Docherty’s mother has just been taken into a nursing home following a massive stroke and she’s unlikely to be able to live independently again. With no other option than to sell the family home, John sets about packing up everything in the house. In sifting through the detritus of his family’s past he’s forced to revisit, and revise his childhood. For in a box, in the attic, he finds undeniable truth that he had a brother who disappeared when he himself was only a toddler.

Ava's life is the kind other people envy: loving husband, great kids, beautiful house. Until the night that a violent home invasion plunges her world into chaos. In the aftermath of the attack, Ava needs answers to two questions. Who has targeted her family? And why? But things aren't adding up. She is starting to suspect that she doesn't know the people closest to her. That someone knows more than they are letting on. That everything she thought she knew about them was a lie. Ava needs to know what happened that night.

A group of strangers arrive on a beautiful but remote island, ready for the challenge of a lifetime: to live there for one year, without contact with the outside world. But 12 months later, on the day when the boat is due to return for them, no one arrives. Eight people stepped foot on the island. How many will make it off alive?