Abigail Gibson is gone. The day after Christmas, she walks out of her home in the suburbs, leaving behind a strange note on the kitchen table...and her 10-year-old son, Sam. When her sister Gillian gets the call, she can barely believe it: Abigail has always been a little, well, unreliable, but she hasn’t done anything like this in a decade - not since Sam was born. Now, Gillian and her husband are taking care of Sam while they wait for news of Abigail.

"Schoolgirl missing", the ticker reads, and the camera cuts to a girl’s face. Blonde hair waterfalling over her shoulders, serious eyes, lips a little parted like she’s about to speak. That’s when I realize I’ve been holding my breath, because the gasp when I inhale almost chokes me. Sadie Kelly has lost her job. Until last month, she was a teacher at Horton College - the same high school she went to 10 years ago along with her best friend, Fiona.

Annie Beyers has everything - a beautiful house, a loving husband, and an adorable daughter. It’s a day like any other when she takes Hannah to the pediatrician…until she wakes hours later from a car accident. When she asks for her daughter, confused doctors tell Annie that Hannah never existed. In fact, nothing after waking from the crash is the same as Annie remembers. Five happy years of her life apparently never happened.

In the pretty, privileged college town of Milford, New Hampshire, everyone is friendly, and everything is safe. And on this cold autumn day, as red and yellow leaves begin to fall from the trees, and everyone wraps up for the first time, it would be easy to believe nothing bad could ever happen here. Until a screech of tires is heard, a thud, a child’s scream. The crash that sees Jenna’s six-year-old daughter, Amy Rose, being hit by a car driven by 17-year-old Maddie.

John Bowman is sick. Very sick. While he still can, he has some amends to make and some promises to fulfill. But to do that, he not only needs his ex-wife's agreement...he needs her. With the past hovering between them like a ghost, Carol and John embark on a decades-overdue road trip. Together they plunge back into a life without water...but which may ultimately set them free.

Anna McNichol knows how to take charge. Raised by a single mother, she’s worked to ensure her three children have every advantage she didn’t. And while her marriage has its problems, she values commitment and believes in "till death do us part." Now an empty nester, she’s at the peak of her career and ready to seize the opportunity to focus on her future.

Charlotte Coburn has a tragically dark past. But she’s safe now. She lives in a gated community, protected from danger. When teenager Elle knocks at her door looking for shelter during a particularly severe storm, the woman can’t help but think how lucky Elle’s been to have found someone as friendly as her. Except Elle chose her door on purpose...

The white-washed Italian villa is perfect. I thought it might feel odd, living in a stranger’s house for the summer, but as my husband and children swim in the infinity pool, I start to relax. And then, in the back of a wardrobe, I find something that shatters everything.... Sparkling green eyes, square jaw, lopsided smile. A young man with his arm around a beautiful woman. The picture is old and faded, but I’d recognize him anywhere. The man is my husband.

Hollis Shaw, creator of the popular food blog, Hungry with Hollis, is shocked when her heart surgeon husband, Matthew, is killed in a one-car accident on a snowy morning. The cracks in Hollis’s perfect life—her strained marriage and her complicated relationship with her daughter, Caroline—grow deeper. So when Hollis hears about something called a “Five-Star Weekend”—one woman organizes a trip for her best friend from each phase of her life: her teenage years, her twenties, her thirties, and midlife—she decides to host her own Five-Star Weekend on Nantucket.

Olivia Hamilton is married to the love of her life, Dean, a charismatic pilot who flies private jets for the rich and famous. But when he vanishes over the Bermuda Triangle, Olivia’s idyllic existence unravels. After years of waiting, Olivia must eventually let go of the fragile hope that her beloved husband might still be alive.

On the day of Lucas Martin’s funeral, his wife, Naomi, learns he was hiding a devastating secret. One that may have cost him his life. When two strangers approach her, Naomi realizes they could be hiding important clues as to what actually happened the day her husband died. Was it an accident? Or something more sinister? Determined to learn the truth, Naomi initiates another meeting with the strangers, in hopes that she’ll uncover the missing puzzle piece from the mysterious last day of her husband’s life.

Jason Bennett is a suburban dad who owns a court-reporting business, but one night, his life takes a horrific turn. He is driving his family home after his daughter’s field hockey game when a pickup truck begins tailgating them, on a dark stretch of road. Suddenly two men jump from the pickup and pull guns on Jason, demanding the car. A horrific flash of violence changes his life forever.

Alexis Gold knows how to put the "work" in working mom. It's the "mom" part that she's been struggling with lately. Since opening her own advertising agency three years ago, Alexis has all but given up on finding a good work/life balance. Instead, she's handed over the household reins to her supportive, loving partner, Tommy. While he's quick to say they divide and conquer, Alexis knows that Tommy does most of the heavy lifting - especially when it comes to their teenage daughter, CeCe. Their world changes in an instant when Tommy receives a terminal cancer diagnosis.

Molly Arnette is very good at keeping secrets. She and her husband live in San Diego, where they hope to soon adopt a baby. But the process terrifies her. As the questions and background checks come one after another, Molly worries that the truth she's kept hidden about her North Carolina childhood will rise to the surface and destroy not only her chance at adoption but her marriage as well.

Lily Bradley is a respected psychotherapist married to a distinguished professor. They live in a dream house with their two children in close-knit Story Cove. Lily lives a well-ordered life. Or so it seems. As a therapist, she knows everyone keeps things hidden. Even her. Then sensual and free-spirited Arwen Harper rolls into town in her hand-painted VW van, her sixteen-year-old son riding shotgun. Overnight, Story Cove’s secrets are no longer safe. Because Arwen might know her new neighbors better than they know themselves.