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.

What was my sister doing standing over Florence’s cot in the middle of the night?I trust my sister, Carrie, with my daughter’s life. But then she’s accused of a terrible crime. Carrie lives under our roof, she pushes my daughter on the swings, she takes her out for ice cream. You might ask, why do I let her? Why would I risk my darling baby? How could I let my sister stay? Because I have a dangerous secret too. One that only Carrie knows about. And if that secret gets out, I could lose my little girl....

On the night when Caitlin and Olivia's parents leave them to go to a dinner party both girls are full of excitement about being old enough to stay home alone. What they don't see is the figure watching them through the open window. Who, after the girls have fallen asleep, will turn the handle of the unlocked back door. When their parents return, they will find Olivia's bed empty. Their eldest daughter gone. Never to return. Until now. But is the woman who claims to be Olivia really all she seems? And is everything Caitlin said she saw that night really the whole truth?

Ten years ago he killed my son. Today I married him. Ten years ago my darling son Jesse was murdered and our perfect family was destroyed. My strong, handsome boy, so full of life, became a memory, a photo I carried with me everywhere. But today I’m finally close to finding happiness again. My ash-blonde hair has been curled into ringlets. Carefully placed white flowers frame my delicate features. The small, drab chapel has been prettied up with white satin, and there are tiny red hearts scattered on the small table where I will soon sign the register with my new husband.

When a teen falls while taking a selfie at the edge of a cliff, the last thing she sees before plummeting to her death is Katie Harmon, the nine-year-old girl she was babysitting, looking down at her. Investigators gather at the scene, and Katie’s mother, Sara, rushes to comfort her daughter. Yet there’s a small, secret ping of alarm in Sara’s heart that she cannot share—though rookie detective Kim Pierce senses it. For years, others have tried to unravel this secret. Now, Sara is consumed by her darkest fear—that the babysitter’s death was not an accident.

Adam and Sophie Warner and their three-year-old daughter are vacationing in Washington State’s Hood Canal for Memorial Day weekend. It’s the perfect getaway to unplug—and to calm an uneasy marriage. But on Adam’s first day out on the water, he sees Sophie abducted by a stranger. A hundred yards from shore, Adam can’t save her. And Sophie disappears.

It all begins on an ordinary fall morning, when Kelly Medina gets a call from her son’s pediatrician to confirm her upcoming "well-baby" appointment. It’s a cruel mistake; her son left for college a year ago, and Kelly’s never felt so alone. The receptionist quickly apologizes: There’s another mother in town named Kelly Medina, and she must have gotten their numbers switched. For days, Kelly can’t stop thinking about the woman who shares her name. Lives in her same town. Has a son she can still hold, and her whole life ahead of her. She can’t help looking for her.

Every day, Mary wakes up before dawn to make breakfast from scratch. She tends the garden and feeds the animals. Every night, Mary makes sure she has dinner on the table for when her husband Cal gets home from work. She puts on his favourite lipstick and greets him with a smile. 'I've missed you.' It's not true and he knows it. But he likes to hear it all the same. Their cabin is hidden deep in the woods in the Scottish Highlands, and Mary doesn't remember the last time she saw another living soul. She tries not to think about her life before too much.

Wife: I couldn’t be prouder of my charming husband and quiet and kind son. I’ve poured everything into my little family, so I choose to ignore my husband’s late-night phone calls and wandering eye. I won’t let anything ruin my perfect life…

Amy is trapped in a nightmare with Jason, a controlling, violent husband. Then on a short cruise without him, Amy befriends Liz, a young woman traveling alone on her way to meet her birth mother for the first time. Liz looks so much like Amy that they could be sisters. When Amy regains consciousness after a terrible accident that takes the lives of many passengers, she finds that, because of a mix-up in personal effects, everyone believes she is Liz. Only she knows it is Liz who has gone missing, presumed dead.

Faith Finley has it all: She’s a talented psychologist with a flourishing career, a best-selling author, and the host of a popular local radio program, Someone’s Listening, with Dr. Faith Finley. She’s married to the perfect man, Liam Finley, a respected food critic. Until the night everything goes horribly wrong, and Faith’s life is shattered forever. Liam is missing - gone without a trace - and the police are suspicious of everything Faith says. They either think she has something to hide, or that she’s lost her mind.

For two years Lucy and Sam renovated their beautiful Victorian home but spiraling debts are forcing them to sell. The agreement with their real estate agent is that they won’t be home for viewings, but when Lucy gets a voicemail saying the Agent is running late, she realizes she will have to show the prospective buyer around herself. Suffering from extreme anxiety and claustrophobia, Lucy watches the stranger on their doorstep waiting to be let in.

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.

When Emma meets Matthew, a kind, handsome widower, he seems to be just what she needs. Yet as their relationship moves fast, Emma’s friends worry she might be exploited. She’s a rich woman after all. Emma doesn’t care Matthew has no money. But as the memory of his perfect first wife hangs over them, Emma does have one tiny doubt. If Matthew’s wife hadn’t died, he wouldn’t be with her. And Emma wonders if she’s second best. Can she ever fill the dead woman’s shoes?

It’s been eleven years since high-powered attorney Sarah Morgan defended her husband, Adam, against the charge of murdering his mistress. Sarah has long since moved on, starting a family with her new husband, Bob Miller, and changing careers. Her life is back to being exactly how she always wanted … or is it?