Marissa Irvine arrives at 14 Tudor Grove, expecting to pick up her young son Milo from his first playdate with a boy at his new school. But the woman who answers the door isn't a mother she recognises. She isn't the nanny. She doesn't have Milo. And so begins every parent's worst nightmare. As news of the disappearance filters through the quiet Dublin suburb and an unexpected suspect is named, whispers start to spread about the women most closely connected to the shocking event. Because only one of them may have taken Milo - but they could all be blamed.

Met cop DI Rob Marshall is hot on the trail of the serial killer known as the Chameleon, who has abducted, tortured and killed a series of young women in Northwest London. As they close in, the Chameleon—who switches identity to get close to his victims—shoots Marshall’s partner and escapes.

One year ago, Lucy’s sister, Nicki, left to meet friends at a pub in Dublin and never came home. The third Irish woman to vanish inexplicably in as many years, the agony of not knowing what happened that night has turned Lucy’s life into a waking nightmare. So, she’s going to take matters into her own hands. Angela works as a paper-pusher in the Missing Persons Unit, but wants nothing more than to be a fully fledged member of An Garda Síochána, the Irish police force. With the investigation into the missing women stalled, she begins pulling on a thread that could break the case wide open.

Twenty years after a baby is stolen from a stroller, a woman is murdered in a care home. The two crimes are somehow linked, and a good bad girl may be the key to discovering the truth. Edith may have been tricked into a nursing home, but at eighty-years-young, she’s planning her escape. Patience works there, cleaning messes and bonding with Edith, a kindred spirit. But Patience is lying to Edith about almost everything. Edith’s own daughter, Clio, won’t speak to her. And someone new is about to knock on Clio’s door…and their intentions aren’t good.

Reclusive Sally Diamond is thrust into the media spotlight when she tries to incinerate her dead father, causing widespread outrage. Now she’s the center of attention, not only from hungry reporters and police detectives, but also a sinister voice from a past she does not remember. As she begins to discover the repressed memories of her horrific early childhood, Sally steps into the world for the first time, making new friends, big decisions, and learning that people don’t always mean what they say.

In a rural Wilshire town lies the Devil’s Corridor—a haunted road which has witnessed eerie happenings, from unexplained deaths to the sounds of a child crying in the night.

Twenty-two-year-old Olivia has been missing for one day…and counting. She was last seen on CCTV, entering a dead-end alley. And not coming back out again. Julia, the detective heading up the search for Olivia, thinks she knows what to expect. A desperate family, a ticking clock, and long hours away from her husband and daughter. But she has no idea just how close to home this case is going to get.

When pregnant Saffron Cutler moves into 9 Skelton Place with boyfriend Tom and sets about renovations, the last thing she expects is builders uncovering human remains. The remains of two bodies, in fact.

At loose ends after the devastating death of her mother, Una Richardson responds to an advertisement for a ladies’ companion, a position that leads her into the wealthy, secluded world of Mrs. Elspeth McKenzie. But Elspeth's home isn’t the comforting haven it seems. Kathryn, her cold and bitter daughter, resents Una's presence. More disturbing is evidence suggesting two girls lived here before her.

Aidan Thomas is a hard-working family man and a somewhat beloved figure in the small upstate New York town where he lives. He’s the kind of man who always lends a hand and has a good word for everyone. But Aidan has a dark secret he’s been keeping from everyone in town and those closest to him. He’s a kidnapper and serial killer. Aidan has murdered eight women and there’s a ninth he has earmarked for death: Rachel, imprisoned in a backyard shed, fearing for her life.

It’s the holiday season and Harriet Reed, a novelist on the brink of literary stardom, is newly engaged to Edward Holbeck, the heir of an extremely powerful family. And even though Edward has long tried to sever ties with them, news of the couple’s upcoming marital bliss has the Holbecks inching back into their lives with one invite after another.

Special Agent Macy Crow is a survivor. After a vicious hit-and-run nearly kills her, she gets right back to work, and now she’s gunning for a spot on the FBI’s elite profiling team. As an audition, she offers to investigate the recently discovered bones of Tobi Turner, a high school girl who disappeared fifteen years ago. While investigating with local sheriff Mike Nevada, a former colleague and onetime lover, Macy discovers a link between Tobi’s case and several others that occurred around the same time as her disappearance.

Psychiatrist Dr. Gwen Moore is an expert on killers. She’s spent a decade treating California’s most depraved predators and unlocking their motives - predators much like the notorious Bloody Heart serial killer, whose latest teenage victim escaped and then identified local high school teacher Randall Thompson as his captor. The case against Thompson as the Bloody Heart Killer is damning - and closed, as far as Gwen and the media are concerned. If not for one new development.

Meet Aimee Sinclair: the actress everyone thinks they know but can’t remember where from. Except one person. Someone knows Aimee very well. They know who she is and they know what she did. When Aimee comes home and discovers her husband is missing, she doesn’t seem to know what to do or how to act. The police think she’s hiding something and they’re right, she is - but perhaps not what they thought. Aimee has a secret she’s never shared, and yet, she suspects that someone knows.

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.

Marissa Irvine arrives at 14 Tudor Grove, expecting to pick up her young son Milo from his first playdate with a boy at his new school. But the woman who answers the door isn't a mother she recognises. She isn't the nanny. She doesn't have Milo. And so begins every parent's worst nightmare. As news of the disappearance filters through the quiet Dublin suburb and an unexpected suspect is named, whispers start to spread about the women most closely connected to the shocking event. Because only one of them may have taken Milo - but they could all be blamed.

Anya is enjoying a relaxing bath when she hears a noise coming from the ceiling. Through the open bathroom door, she sees the attic hatch swing down, and a masked figure drops to the floor. Thirty seconds later, Anya is dead. Across town, Anya's old school friend, Julia, sees an online video of a masked figure climbing out of an attic. She suddenly realizes why the footage is eerily familiar: it was filmed inside her own house in a luxury gated community, designed to keep intruders out. Why would a stranger target Julia? Unless of course, it's not a stranger at all.

When Lauren takes a photo of a stranger on a beach and shares it online, she has no idea what will come of that single click. Her daughters are surprised that she posted a photo without consent, but it’s only when she starts to get anonymous messages about the woman on the beach that she deletes the photo. It’s too little too late, and the messages escalate, prompting Lauren to confess to the woman. The woman has her own dark story, one that might explain the messages, but Lauren isn’t convinced.

Eighteen-year-old Janie White has the world and a bright future ahead of her. She’s about to leave behind her small seaside town, the only home she’s ever known, to embark on a book publishing career in London and couldn’t be more excited. Even though she’ll miss her dad and friends, she can’t wait to start her life. She’s cycling home after her last early-dawn swim in the bay when the peaceful stillness of that Tuesday morning is suddenly shattered. A white van careens around the corner and barrels straight for Janie on her bike.

Every morning and evening, Zoe Walker takes the same route to the train station, waits at a certain place on the platform, finds her favorite spot in the car, never suspecting that someone is watching her. It all starts with a classified ad. During her commute home one night, while glancing through her local paper, Zoe sees her own face staring back at her - a grainy photo along with a phone number and a listing for a website called FindTheOne.com.