It's a blindingly hot summer. International visitors surge into Sydney's Darling Harbour. Two-year-old Tommy is sailing his toy boat in the park there with his mother Phoebe. Tommy vanishes into thin air. The following winter, taunting notes written as nursery rhymes begin arriving at his parents' home. Little Boy Blue, where did you go? Who led you away? Only I know.

It was summer in the mountains when five small children vanished from their nursery school picnic. The heat was stifling that day, the tinkle of an ice-cream van in the air.... Three-and-a-half years later, in the dead of winter, the children are returned to their families...one by one. All except for Ivy - the granddaughter of Homicide Detective Kate Wakeland. The other four children say Ivy is dead.

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.

In 1998, the American Jorgenson family had been on a year-long road trip in Australia. One humid, storming night, the mother - Elsa Jorgenson - vanished in an isolated stretch of Australian everglades. Elsa was never seen again. That night, twelve-year-old Lily Jorgenson was left alone and terrified in the family camper—even her teenage sister Iris is missing. When Iris comes racing back through the rain, she refuses to tell where she’s been. Lily is certain her sister is hiding a dark secret.

Evie is in the grip of a gambling addiction. She's terrified she'll destroy the lives of her husband and two small daughters, especially with her rising debt. She grabs onto a lifeline - the offer of a program that promises to heal addictions and give her a fresh start. Evie and 27 others from around the world travel to a monastery on a tiny Greek island to begin the program. There are six days and six challenges on the path to healing. Ten thousand dollars per challenge. Sixty thousand on completion. Enough to pay off debts and start anew.

Seven years ago, six-year-old Maisie Earnshaw was found facedown in a duck pond, her body mutilated. Isabel - at age 14, found covered in Maisie's blood - was convicted of murder. As Leah spends time with Isabel, she comes to know her as a young woman with a sweet, gentle nature, someone she could never see as a murderer. Leah begins to suspect members of the Fielding family of framing Isabel as a young girl, and she's not the only one. True crime blogger James Gorden thinks Isabel is innocent, too.

I only try on one of Nina’s pristine white dresses once. Just to see what it’s like. But she soon finds out...and by the time I realize my attic bedroom door only locks from the outside, it’s far too late. But I reassure myself: The Winchesters don’t know who I really am. They don’t know what I’m capable of....

Shelby Tebow is the first to go missing. Not long after, Meredith Dickey and her six-year-old daughter, Delilah, vanish just blocks away from where Shelby was last seen, striking fear into their once-peaceful community. Are these incidents connected? After an elusive search that yields more questions than answers, the case eventually goes cold. Now, 11 years later, Delilah shockingly returns. Everyone wants to know what happened to her, but no one is prepared for what they'll find....

Everyone from Wakarusa, Indiana, remembers the infamous case of January Jacobs, who was discovered in a ditch hours after her family awoke to find her gone. Margot Davies was six at the time, the same age as January—and they were next-door neighbors. In the twenty years since, Margot has grown up, moved away, and become a big-city journalist. But she’s always been haunted by the feeling that it could’ve been her. And the worst part is, January’s killer has never been brought to justice.

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.

Some places seem too beautiful to be touched by horror. Summit Lake, nestled in North Carolina’s Blue Ridge Mountains, is that kind of place. But two weeks ago, Becca Eckersley, a first-year law student and daughter of a powerful attorney, was brutally murdered there. Now the town is reeling with grief, and the police are baffled.

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.

When Aurelie Harcourt's father dies in debtor's prison, he leaves her just two things: his wealthy family, whom she has never met, and his famous pen name, Nathaniel Droll. Her new family greets her with apathy and even resentment. Only the quiet houseguest, Silas Rotherham, welcomes her company. When Aurelie decides to complete her father's unfinished serial novel, she must keep her identity as Nathaniel Droll hidden while searching for the truth about her mother's disappearance - and perhaps even her father's death.

When British twenty-somethings Ruth and Adam are offered the chance to spend the summer housesitting in New York, they can’t say no. Young, in love and on the cusp of professional success, they feel as if luck is finally on their side. So the moment that Eden turns up on the doorstep, drenched from a summer storm, it seems only right to share a bit of that good fortune. Beautiful and charismatic, Eden claims to be a friend of the homeowners, who told her she could stay whenever she was in New York. They know you’re not supposed to talk to strangers....

If Avery Chambers can’t fix you in 10 sessions, she won’t take you on as a client. Her successes are phenomenal—she helps people overcome everything from domineering parents to assault—and almost absorbs the emptiness she sometimes feels since her husband’s death. Marissa and Mathew Bishop seem like the golden couple—until Marissa cheats. She wants to repair things, both because she loves her husband and for the sake of their eight-year-old son. After a friend forwards an article about Avery, Marissa takes a chance on this maverick therapist.

The truth hurts.... Erin and Roisin were friends until a fatal accident ruined both their lives. Now Roisin has discovered a secret - one Erin has kept for over a decade - and she's determined to make Erin pay for her lies. Erin wants nothing to do with Roisin. She has a new life in London and no intention of going back home. Yet when her father is mysteriously and critically injured, Erin has no choice but to return and face Roisin - and her past.

Alice: beautiful, kind, manipulative, liar. Clare: intelligent, loyal, paranoid, jealous. Clare thinks Alice is a manipulative liar who is trying to steal her life. Alice thinks Clare is jealous of her long-lost return and place in their family. One of them is telling the truth. The other is a maniac. Two sisters. One truth.

Six months ago, Charlotte almost lost everything. Now, she’s determined to keep her daughter, Elle, safe. So when local girls close to Elle in age and appearance begin to go missing, it’s her worst nightmare. Charlotte’s fears are confirmed when a frantic search becomes a shocking murder investigation. The girls’ bodies have been found - half-buried, and with traces of mud and wildflowers under their fingernails. As Charlotte’s obsession with keeping her daughter close pushes her marriage to the brink, local DI Madeleine Wood embarks on a gruelling search for the killer.

When Lizzie’s car crashes with her two daughters inside, she faces a terrible choice. And when she recovers from her injuries, she must deal with the impact of that tragedy and the police investigation into it. As Lizzie and her family struggle to come to terms with the events of that night, things take an even darker turn. What exactly happened on that remote country road? Who is responsible? And can the family get through this together…or will the truth finally tear them apart?

1943: the world is at war, and the villagers of Tyneham are being asked to make one more sacrifice: to give their homes over to the British army. But on the eve of their departure, a terrible act will cause three of them to disappear forever. 2018: Melissa had hoped a break on the coast of Dorset would rekindle her stagnant relationship, but despite the idyllic scenery, it’s pushing her and Liam to the brink.

Dear Elizabeth, I've been watching you. I hope to see you...soon. Liz Cafferky is on the up. Rescued from her dark past by the owner of a drop-in centre for older men, Liz soon finds herself as the charity's face - and the unwilling darling of the Dublin media. Amidst her claustrophobic fame, Liz barely notices a letter from a new fan. But then one of the centre's clients is brutally murdered, and Elizabeth receives another, more sinister note. Running from her own ghosts, Liz is too scared to go to the police.

Neve comes across a troubled woman called Isabelle on Waterloo Bridge late one night. Isabelle forces a parcel into Neve's hands and jumps to her death in the icy Thames below. Two weeks later, as Neve's wreck of a life in London collapses, an unexpected lifeline falls into her lap - a charming cottage in Cornwall left to her by Isabelle, the woman on the bridge. The solution to all her problems.

You lost your daughter. You will never forgive yourself. And now someone is determined to make you pay.... Seventeen years ago, something happened to Jess' daughter, Beth. The memory of it still makes her blood run cold. Jess has tried everything to make peace with that day, and the part she played in what happened. It was only a brief moment of desire...but she'll pay for it with a lifetime of guilt.

Margot Lewis is a teacher at an exclusive high school in the English university town of Cambridge. In her spare time, she writes an advice column, "Dear Amy", for the local newspaper. When one of Margot's students, 15-year-old Katie, disappears, the school and the town fear the worst. And then Margot gets a "Dear Amy" letter unlike any of the ones she's received before. It's a desperate plea for rescue from a girl who says she is being held captive and in terrible danger - a girl called Bethan Avery, who was abducted from the local area 20 years ago and never found.

Jenny is a successful family doctor, the mother of three great teenagers, married to a celebrated neurosurgeon. But when her youngest child, 15-year-old Naomi, doesn't come home after her school play, Jenny's seemingly ideal life begins to crumble. The authorities launch a nationwide search with no success. Naomi has vanished, and her family is broken.

Dr Cat Lupo aches for another child despite the psychosis which marked her first pregnancy. So when Ruby Winter, a small girl in need of help, arrives in the middle of the night, it seems like fate. But as the events behind Ruby's arrival emerge - her mother's death, her connection to Cat - Cat questions whether her decision to help Ruby has put her own daughter at risk.

Kaitlyn Best is stuck in a rut. So when she discovers she's pregnant after a one-night stand with Alex, her school crush, she throws caution to the wind and accepts his offer to make a new life together in the depths of the Lake District, far from her home...and her demons. But Alex is not what he seems. And when Kaitlyn's world begins to crumble before her eyes, she realises she barely knows the man she has agreed to spend the rest of her life with.

December 2018, and free-spirited Influencers Bo Loxley and her partner, Zac, are living a life of wanderlust, travelling the globe and sharing their adventures with their millions of fans. Booked to spend Christmas in the Norwegian fjords, they set up home in a remote farm owned by enigmatic mountain guide Anders and his fierce grandmother, Signy. Surrounded by snowy peaks and frozen falls, everything should be perfect. But the camera can lie, and with every new post, the ‘perfect’ life Zac and Bo are portraying is diverging from the truth.

Lena London's literary dreams are coming true - as long as she can avoid any real - life villains.... Camilla Graham's best-selling suspense novels inspired Lena London to become a writer, so when she lands a job as Camilla's new assistant, she can't believe her luck. Not only will she help her idol craft an enchanting new mystery, she'll get to live rent-free in Camilla's gorgeous Victorian home in the quaint town of Blue Lake, Indiana.

In 1964, Maggie wakes to find herself in a mental asylum, with no idea who she is or how she got there. Remnants of memories swirl in her mind - a familiar song, a storm, a moment of violence. Slowly, she begins to piece together the past and the events which brought her to this point.

It's a blindingly hot summer. International visitors surge into Sydney's Darling Harbour. Two-year-old Tommy is sailing his toy boat in the park there with his mother Phoebe. Tommy vanishes into thin air. The following winter, taunting notes written as nursery rhymes begin arriving at his parents' home. Little Boy Blue, where did you go? Who led you away? Only I know.

Visiting her family's South Carolina estate, socialite Gray Godfrey wakes from a night out to an empty bed. Her husband, Paul, is gone, and a thrashing hangover has wiped her memory clean. At first, she's relieved for the break from her tumultuous marriage; perhaps Paul just needed some space. But when his car is found abandoned on the highway, Gray must face the truth: Paul is gone. And Gray may not want him found. Her life is unraveling. When a stranger named Annie calls claiming to know Paul's whereabouts, Gray reluctantly accepts her help.

Investigative journalist Laura Chambers is back in her tiny hometown of Hillsborough, North Carolina, the one place she swore never to return. Fired from The Boston Globe, her career in shambles, she reluctantly takes a job with the local paper. The work is simple, unimportant, and worst of all, boring - at least until a missing girl turns up dead, the body impeccably clean, dressed to be the picture of innocence. Years earlier, 10-year-old Patty Finch left home and never made it back. But for the people of Hillsborough, Patty was just the beginning.

In 1998, the American Jorgenson family had been on a year-long road trip in Australia. One humid, storming night, the mother - Elsa Jorgenson - vanished in an isolated stretch of Australian everglades. Elsa was never seen again. That night, twelve-year-old Lily Jorgenson was left alone and terrified in the family camper—even her teenage sister Iris is missing. When Iris comes racing back through the rain, she refuses to tell where she’s been. Lily is certain her sister is hiding a dark secret.

Nicole Cutty and Megan McDonald are both high school seniors in the small town of Emerson Bay, North Carolina. When they disappear from a beach party one warm summer night, police launch a massive search. No clues are found, and hope is almost lost until Megan miraculously surfaces after escaping from a bunker deep in the woods. A year later the best-selling account of her ordeal has turned Megan from local hero to national celebrity.

A family of four murdered in their hotel room. A single mother and her boyfriend both stabbed to death. A sordid history of violent crimes, repeated over and over - but decades apart. Olivia Barker is a therapist with no connection to the murders. But she has heard things. Stories that keep her up at night. Details that only a killer would know. A killer who could be one of her patients…Olivia has no proof for her suspicions. But as the body count rises, so do her fears. A rock is thrown through her window, her car tires are slashed, a chilling message is scrawled on her bathroom mirror.

It was a summer of love and a summer of secrets. She has built a good life: a husband who adores her, a daughter she is fiercely proud of, a home with warmth and love at its heart. But things were not always so good, and the truth is that she has done things she can never admit.

It seems like the perfect job. Great wages, accommodation provided and all located within the walls of Highwood Hall, a stunning stately home owned by the Howard family. Not many little girls dream of becoming a maid, but this is an opportunity for me to get back on my feet. And for me to revisit my past....

Quinn Alexander has committed an unthinkable crime. To avoid spending her life in prison, Quinn makes a run for it. She leaves behind her home, her job, and her family. She grabs her passport and heads for the northern border before the police can discover what she's done. But when an unexpected snowstorm forces her off the road, Quinn must take refuge at the broken-down, isolated Baxter Motel. The handsome and kindly owner, Nick Baxter, is only too happy to offer her a cheap room for the night. Unfortunately, the Baxter Motel isn't the quiet safe haven it seemed to be.

Every year, Caroline Reed takes a trip with her best friend, Esme Lamont. They’re usually accompanied by their spouses - but this year, everything’s changed. Esme has just gone through a bitter divorce, and Caroline's wondering if her own marriage is reaching its breaking point as she and her husband, John, cope with the discovery that their son has been abusing drugs. Still, the inseparable duo books a weeklong stay at a beach-front home in Shoreham, Florida, inviting Esme’s brother, Nick, and his new husband. After a blissful first night in the vacation home, tragedy strikes.