When a divorcee vacationing in the British countryside puts out an ad for an au pair, Cassandra Vale, 23, broke, still reeling from the ruins of her last placement in France, takes the job without hesitation. Wealthy, handsome and generous, with two sweet children, she feels nothing can go wrong. But can it?

Few in the small, remote town of Tibbetts, Connecticut, even remember the estate and the insidious events that took place years earlier. Struggling with writer’s block and a tight deadline for his new novel, David Pragmore suggests a retreat away from Hartford to his wife, Susan, in order to find fresh inspiration. The publishers want David’s new book to shine in the horror genre, so when David reads about the odd manor with a haunted past, it seems like the perfect place to recapture his muse. But David and Susan quickly discover that some stories aren’t meant to be told.

Investigative journalist Emma Hunter never thought she’d be a best-selling author. Especially not for a blistering exposé of the brutal horrors committed at a children’s home. All she wants is to return home to the anchoring salt air and solitude of Weymouth where questions still fester unanswered and a 20-year-old secret binds her to the beach.

Scarred by fire from infancy, with a persistent stammer, Charlotte has always been in the shadow of her glamorous theatrical parents. So it's a shock when her mother commits suicide. Left to care for her sick father in the dark maze of her childhood home, Charlotte begins to unravel. First, there's the mysterious arrival of a box of dead bees. Then buzzing noises in the attic. People are watching her. Listening to her. Everyone thinks she's losing her mind. But an old photo suggests another, more sinister possibility.... 

When Grace’s husband, Adam, inherits an isolated North Yorkshire cottage, they leave the bustle of London behind to try a new life. A week later, Adam vanishes without a trace, leaving their baby daughter, Millie, in her stroller on the doorstep. The following year, Grace returns to the tiny village on the untamed heath. Everyone - the police, her parents, even her best friend and younger sister - is convinced that Adam left her. But Grace, unable to let go of her memories of their love and life together, cannot accept this explanation.

Eighteen-year-old Lydia Stone wakes up one morning in the north London Gothic mansion she shares with her family, to find that her twin sister Kate has disappeared off the face of the earth. CCTV footage shows Kate entering a night club in south London on the night she went missing, but there is no evidence that she ever came out of the club, and the police are considering the idea that she was sex-trafficked.

FBI Special Agent Zoe Prime suffers from a rare condition that also gives her a unique talent - she views the world through a lens of numbers. The numbers torment her, make her unable to relate to people, and give her a failed romantic life - yet they also allow her to see patterns that no other FBI agent can see. Zoe keeps her condition a secret, ashamed, in fear her colleagues may find out. Yet when a serial killer strikes across the Midwest, strangling women in remote places and seemingly at random, Zoe, for the first time, is stumped.

When Matt and Imogen move out of the city, they're hoping for a much-needed fresh start. Matt throws himself into his new job, but Imogen struggles to adjust to life in quiet Surrey. She's grateful for the kind welcome from new neighbour Nancy, and they soon become close friends. So when Nancy makes a shocking accusation, Imogen doesn't know who to trust. This isn't the first time Matt has found himself on the wrong end of a false accusation...but is Nancy hiding secrets of her own?

The perfect marriage? Or the perfect lie? Jack has looks and wealth; Grace has charm and elegance. You might not want to like them, but you do. You'd like to get to know Grace better. But it's difficult, because Jack and Grace are never apart. Some might call this true love. Others might ask why Grace never answers the phone. And why there are bars on one of the bedroom windows. Sometimes the perfect marriage is the perfect lie.

No relationship is perfect. But since the birth of baby Mabel seven months ago, Amber and George have been in desperate need of a night away. Mabel is all that Amber has ever wanted, but she can’t deny that sometimes she struggles to cope. George has booked them into a luxury hotel, and Amber’s sister is babysitting. Yet just as they are ready to leave, Amber can’t suppress a feeling of worry.... 

She is an exceptionally successful writer whose obsessive readers hound her for every book. But the pressure is extreme. And it’s not just the pressure of finishing her next novel. Years ago when she was a child, Lucy’s little brother went missing, and he has never been found. Many people think Lucy was responsible for his disappearance. Lucy herself can’t bear to think about it. Writing a thriller a year is demanding, and Lucy depends on her husband, Dan, to take care of everything in her life. But Lucy finds herself in a real police drama when Dan goes missing.

When she stumbles across the advert, she's looking for something else completely. But it seems like too good an opportunity to miss: a live-in nanny position, with a staggeringly generous salary. And when Rowan arrives at Heatherbrae House, she is smitten by the luxurious 'smart' home fitted out with all modern conveniences, by the beautiful Scottish Highlands, and by this picture-perfect family. What she doesn't know is that she's stepping into a nightmare - one that will end with a child dead and her in a cell awaiting trial for murder.

Rebecca Dawson lives a life that many women want - married to wealthy, handsome businessman Jamie and new mum to beautiful daughter Ella. She thinks nothing can burst her bubble, until a series of sinister events leaves Rebecca convinced that she is being stalked. While her only priority is keeping Ella safe, Rebecca knows that this might be more than coincidence and fears that her past is back to haunt her. Because, somebody knows what she did. They are watching her, tormenting her, and soon, they are going to make her pay.

You never know what’s going on behind closed doors.... If you passed it on the street, you’d see an ordinary London townhouse. You might wonder about the people who live there, assume they’re just like you. But inside a family is trapped in a nightmare. In the kitchen, a man lies dead on the blood-soaked floor. Soon the police will come, and they’ll want answers. Perhaps they'll believe the family’s version of events - that this man is a murderer who deserved to die. But would that be the truth?

The day after her ninth birthday, Lucie and Blake Sullivan agree, for the very first time, to let their daughter, Grace, make the four-minute walk back home alone from a friend’s house down the street. They joke with friends about hiding behind bushes to ensure she is safe. But the joke turns sour when Grace does not appear. Despite the best efforts of the police and local community, Grace seems to have vanished into thin air. With hope fading fast, Lucie knows she can rely on her husband to support her. That is until the day she makes a shocking discovery....