0n a hot summer day at Bellwhether High School in Sydney, Australia, teacher Bill Pagett lies murdered, the hole in his head accomplished with neat efficiency by a Black & Decker drill. Detective Inspector Carol Ashton investigates, bringing with her a formidable reputation for competence. She soon uncovers tangled relationships and motives for murder among the six teaching staff, along with a maze of malicious anonymous letters and threatening phone calls. And then there is yet another corpse.

After her teenage daughter, Mia, falls in with the wrong crowd, Dr Billie Green decides it's time to leave the city and return home to Far Western NSW. When an opportunity to pursue her childhood dream of joining the Flying Doctor Service comes along, she jumps at the chance. Flight Nurse Daphne Prince - who is thrilled to have another woman join the otherwise male crew - and their handsome new boss, Morgan Blake, instantly make her feel welcome.

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.

Lenny has always known that his wife, Claire, is the love of his life. But somehow his marriage is in shambles, he’s struggling with the kids, and a string of anonymous text messages are tormenting him, insisting that Claire is a liar. Claire knows Lenny is a good man, but there’s a lot she hasn’t told him about her past. Now she’s terrified that the horrors that haunt her are about to put her entire family in danger. Strange new neighbours, insidious clients and schoolyard scandal begin to fracture Claire and Lenny’s happy families façade.

In one terrible moment, paramedic Sophie Phillips' life is ripped apart - her police officer husband is shot on their doorstep and their ten-month-old son is abducted from his bed. Suspicion surrounds her possibly corrupt husband, but Sophie believes the attack is much more personal. Sophie enlists her husband's partner in the hunt for her son, but will the history they share prove harmful to Sophie's ability to complete her mission?

It is midnight on the morning of Halloween, and Jen anxiously waits up for her 18-year-old son, Todd, to return home. But worries about his broken curfew transform into something much more dangerous when Todd finally emerges from the darkness. As Jen watches through the window, she sees her funny, seemingly happy teenage son stab a total stranger.

Psychologist Margot Scott has a picture-perfect life: a nice house in the suburbs, a husband, two children and a successful career. On a warm spring morning Margot approaches one of her clients on a busy train platform. He is looking down at his phone, with his duffel bag in hand as the train approaches. That’s when she slams into his back and he falls in front of the train. Margot’s clients all lie to her, but one lie cost her family and freedom.

Everyone has secrets, and Rachel Holloway is no exception. She’s worked hard to keep the past where it belongs: dead and buried. And so far, she’s been very successful. But now the small newspaper where she works wants to produce a podcast on a cold case: the disappearance 12 years ago of young Molly Forster. Some secrets should never see the light of day, and, as far as Rachel is concerned, whatever happened to little Molly is one of them.

Mia Hamilton lived the perfect life with her husband, university teacher Zach, and their two-year-old daughter. But everything changed when Zach committed suicide on the same night one of his students vanished. Five years later, just when Mia is beginning to heal, stranger Alison walks into her life, saying her husband didn't kill himself. Fragile, slight Alison leads Mia on a path into Zach's past, and Mia begins to think she never really knew her own husband.

Newlyweds Lina and Cain don’t make it out to their property on gorgeous Lake Tarawera as often as they’d like, so when Cain suggests they rent the house out to vacationers, Lina reluctantly agrees. While the home has been in her family for generations, they could use the extra money. And at first, Lina is amazed at how quickly guests line up, and at how much they’re willing to pay. But both Lina and Cain have been keeping secrets, secrets that won’t be put off by fresh paint or a new alarm system. And someone has been watching them.

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....

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.

On their first date back in law school, Natalie and Will Clarke bonded over drinks, dinner, and whether they could get away with murder. Now married, they’ll put the latter to the test when an unchecked danger in their community places their son in jeopardy. Working as a criminal defense attorney, Nat refuses to rely on the broken legal system to keep her family safe. She knows that if you want justice...you have to get it yourself.

Laura thought she’d found the one nice guy in New York City. When Ethan saves her from a crushing crowd on Brooklyn Bridge, their connection is dazzling. Worthy of a heat-filled passionate night. Laura falls pregnant from their one-night stand—a miracle considering her past fertility issues. Ethan is attentive and wonderful at first. She hopes he will be the kind of father she’d always wanted for herself. Until his attentiveness turns to obsession. His questions become demands. Why didn’t she answer her phone or respond to his messages? Why won’t she move in with him and his rich mother?

Kate returns from a post-break-up holiday with her girlfriends to news of a serial killer in her hometown - and his victims all look like her. It could, of course, be a simple coincidence. Or maybe not. She becomes convinced she is being watched, followed even. Is she next? And could her mild-mannered ex-boyfriend really be a deranged murderer? Or is the truth something far more sinister?