Philomena McCarthy is an ambitious police officer with the elite Metropolitan Police in London, responding to a domestic violence call. Tempe Brown is a bloodied young woman and the mistress of a decorated and intimidating London detective, Darren Goodall. Philomena and Tempe strike up a tentative friendship, determined to protect each other from Goodall, but something isn’t quite right about the stories Tempe tells and the secrets she keeps.

Celebrating her forty-fifth birthday at her local pub, popular podcaster Alix Summer crosses paths with an unassuming woman called Josie Fair. Josie, it turns out, is also celebrating her forty-fifth birthday. They are, in fact, birthday twins. A few days later, Alix and Josie bump into each other again, this time outside Alix’s children’s school. Josie has been listening to Alix’s podcasts and thinks she might be an interesting subject for her series. She is, she tells Alix, on the cusp of great changes in her life.

"Your daughter is dead." When Kat Cavanaugh hears the words every mother dreads, her perfect world shatters. She takes in the beautiful long blonde hair, torn yellow dress, and chipped blue nail-varnish. It can’t be real. And then the police add the word "suicide". But Kat refuses to believe them. Even when they show her the familiar looping handwriting and smudged ink on the note her little girl left behind. She knows her bubbly, vivacious daughter would never take her own life.

Police detective Ali Barba receives an urgent letter from her estranged friend Cate. Startled by the letter's alarming tone and eager to atone for egregious past actions, Ali meets Cate at their high-school class reunion. The obviously pregnant Cate begs Ali to stop those who are trying to take her baby. But the plot takes a bizarre twist when a careening car kills Cate - and Ali discovers the truth about Cate's pregnancy.

Audie Palmer has spent 10 years in a Texas prison after pleading guilty to a robbery in which four people died and seven million dollars went missing. During that time he has suffered repeated beatings, stabbings and threats by inmates and guards, all desperate to answer the same question: where's the money?

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.

Three years ago Toni's five-year-old daughter, Evie, disappeared after leaving school. The police have never been able to find her. There were no witnesses, no CCTV, no trace. But Toni believes her daughter is alive. And as she begins to silently piece together her memories, the full story of the past begins to reveal itself - and a devastating truth. Toni's mind is trapped in a world of silence. Her only chance to save herself is to manage the impossible: she must find a way to make herself heard. She must find her daughter.

Kirstie Rawlings is jolted awake by a child crying. Racing upstairs to check on her newborn, she is plunged into every parents’ worst nightmare. She hears an unknown voice in the baby monitor, saying: "Let’s take the child - and go." Is someone trying to steal her little girl? In the bedroom, her daughter is safe asleep in her cot. Is the voice coming from a nearby house? But there aren’t any other children living on her quiet country road....

How far would you go to protect your family? Single dad Ben is doing his best to raise his children, with the help of his devoted mother, Judi. And then Ben meets Amber. Everyone thinks this is a perfect match for Ben, but Judi isn't so sure.... There's just something about Amber that doesn't add up. Ben can't see why his mother dislikes his new girlfriend. And Amber doesn't want Judi anywhere near her new family. Amber just wants Ben and the children.

In the summer of 2006, Emma Price watched helplessly as her six-year-old son's red coat was fished out of the River Ouse. It was the tragic story of the year - a little boy, Aiden, wandered away from school during a terrible flood, fell into the river, and drowned. His body was never recovered. Ten years later Emma has finally rediscovered the joy in life...until Aiden returns.

Newlyweds Tricia and Ethan are searching for the house of their dreams. But when they visit the remote manor that once belonged to Dr. Adrienne Hale, a renowned psychiatrist who vanished without a trace four years earlier, a violent winter storm traps them at the estate… with no chance of escape until the blizzard comes to an end. In search of a book to keep her entertained until the snow abates, Tricia happens upon a secret room. One that contains audio transcripts from every single patient Dr. Hale has ever interviewed.

Owen Pick’s life is falling apart. In his 30s and living in his aunt’s spare bedroom, he has just been suspended from his job as a teacher after accusations of sexual misconduct - accusations he strongly denies. Searching for professional advice online, he is inadvertently sucked into the dark world of incel forums, where he meets a charismatic and mysterious figure. Across the street from Owen lives the Fours family, headed by mom Cate, a physiotherapist, and dad Roan, a child psychologist. But the Fours family have a bad feeling about their neighbor Owen.

When 10-year-old cousins Maddy and Brianna are arrested for a terrible crime, Maddy’s mother, Juliet, cannot believe it. How could her bright, joyful daughter be capable of such a thing? As the small village community recoils in horror, the pressure of the tragedy blows Juliet and her sister’s lives apart. And things get even worse when their daughters retreat into a self-imposed silence. Can anyone reach Maddy and discover the truth before her fate is sealed? Juliet is crushed. Nothing will ever be the same for her darling girl.

Two days ago, the Wilson family checked into the imposing, glass-fronted Lodge, surrounded by snow and perched perilously on the edge of a cliff looking out to a gray sea. Not everyone was looking forward to the family get-together. But mother-in-law Angela insisted the winter trip would help heal their rifts....

Newly married Natasha has the perfect house, a loving husband, and a beautiful little girl called Emily. She’d have it all if it wasn’t for Jen, her husband’s ex-wife who just won’t leave them alone. Then Natasha returns home one day to find her husband and Emily gone without trace. Desperate to get her daughter back, Natasha will do anything even if it means accepting an offer of help from Jen.