It’s every parent’s worst nightmare: the call that comes in the middle of the night. When Kat Jenkins awakens to the police on her doorstep, her greatest fear is realized. Her nine-year-old son, Ethan, is missing - vanished from the cabin where he’d been on an overnight class trip. Shocked and distraught, Kat rushes to the campground, but she’s too late; the authorities have returned from their search empty-handed after losing Ethan’s trail in the mountain forest.

Gemma Robinson comes into Elliot’s life like a whirlwind, and they marry and settle into his home. When she asks him if her parents can come to stay for a couple of weeks, he is keen to oblige - he just doesn’t quite know what he’s signing up for. The Robinsons arrive with Gemma’s sister, Chloe, a mysterious young woman who refuses to speak or leave her room.

For nearly a year, Beth has been planning for her escape. She's thought through everything - a new look, new name and new city - because one small slip and her husband will find her. A couple hundred miles away, Jeffrey returns home from a work trip to find his wife, Sabine, is missing. Wherever she is, she’s taken almost nothing with her. Her abandoned car is the only evidence the police have, and all signs point to foul play.

The first time Jemma and Matt were invited to Polskirrin - the imposing ocean-view home belonging to Matt’s childhood friend Lucas Jarrett - it was for an intimate wedding that ended in tragedy. Jemma will never forget the sight of the girl’s pale body floating listlessly towards the rocky shore. Now, exactly one year later, Jemma and her husband have reluctantly returned at Lucas’s request to honor the anniversary of an event they would do anything to forget.

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....

Beth Montgomery seems to have the perfect life: a beautiful house in the hills above Los Angeles, a handsome, ambitious husband, and plans of starting a family. So it doesn't occur to her to worry when the news breaks of a quadruple homicide across town, a botched drug deal that leaves an undercover officer among the dead. Beth certainly would never think to tie the murders to the sudden reappearance in her life of wild, sexy Cassie Ogilvy, the estranged best friend she hasn't seen since they were college roommates. 

Cat Kinsella overcame a troubled childhood to become a detective constable. When she’s called to the scene of a murder, not far from the pub her estranged father still runs, she discovers that Alice Lapaine is dead. Cat and her team suspect Alice’s husband, until she receives a phone call that links the victim to Maryanne Doyle, a teenage girl who went missing in Ireland 18 years earlier. The call raises uneasy memories for Cat. Though she was only a child, Cat knew that her father wasn’t telling the truth when he denied knowing anything about Maryanne or her disappearance.  

Small-town lawyer Bocephus Haynes comes home late one night to find District Attorney General Helen Lewis waiting for him. Her ex-husband has just been killed. She’s about to be arrested for his murder. And she wants Bo to represent her. There’s a lot working against them. Just before his death, Helen’s ex-husband threatened to reveal a dark secret from her past. Bo has been in a tailspin since his wife’s death. 

Clare Cassidy is no stranger to murder. A high school English teacher specializing in the Gothic writer R. M. Holland, she teaches a course on it every year. But when one of Clare’s colleagues and closest friends is found dead, with a line from R. M. Holland’s most famous story, “The Stranger”, left by her body, Clare is horrified to see her life collide with the story lines of her favorite literature. 

Iris and Will have been married for seven years, and their marriage is as close to perfect as it can be. But on the morning Will leaves for a business trip to Florida, Iris' happy world comes to an abrupt halt. Another plane headed for Seattle has crashed into a field, killing everyone on board, and, according to the airline, Will was one of the passengers. Grief stricken and confused, Iris is convinced it all must be a huge misunderstanding. Why did Will lie about where he was going? What is in Seattle? And what else had he lied about?

Growing up, Bianca St. Ives knew she was different from all her friends. Instead of playing hopscotch or combing her dolls' hair, she studied martial arts with sensei masters and dismantled explosives with special-ops retirees. Her father prepped her well to carry on the family business. Now a striking beauty with fierce skills, the prodigy has surpassed the master.

When former journalist Rain Winter was 12 years old, she narrowly escaped an abduction while walking to a friend’s house. The abductor was eventually found and sent to prison, but years later was released. Then someone delivered real justice - and killed him in cold blood. Now Rain is living the perfect suburban life, spending her days as a stay-at-home mom. But when another criminal who escaped justice is found dead, Rain is unexpectedly drawn into the case.

Janey Markham is thrilled to be moving with her family to Buckingham Crescent, the smartest address in a desirable suburban town. Worried she’ll be excluded by the glossy local mothers, Janey is thrilled when she meets Tanya, the kind of woman she has always looked up to. Tanya takes Janey under her wing and her teenage daughter, Angel, is amazing with Janey’s little boy. As Janey and Tanya grow closer, Janey feels she can finally leave her troubled past behind.  

Vivian Brazier never thought life as an art photographer would include nightly wake-up calls to snap photos of grisly crime scenes or headshots for aspiring male actors. Although she is set on a career of transforming photography into a new art form, she knows her current work is what’s paying the bills. After shooting crime scene photos of a famous actress, the latest victim of the murderer the press has dubbed the “Dagger Killer,” Vivian notices eerie similarities to the crime scenes of previous victims details that put Vivian at the top of the killer’s target list.

Lila Ridgefield lives in an idyllic college town, but not everything is what it seems. Lila isn’t what she seems.A student vanished months ago. Now, Lila’s husband, Aaron, is also missing. At first these cases are treated as horrible coincidences until it’s discovered the student is really the third of three unexplained disappearances over the last few years. The police are desperate to find the connection, if there even is one. Little do they know, they might be stumbling over only part of the truth.