Anna works two jobs to get herself through college and never, ever talks about her family. It’s easier to keep her distance from everyone until she can finally leave her old life behind. That is, until chance throws her together with Gabe....

With a lucrative freelance career and a loving family, Deborah Earle has a life many women would envy. But her daughter, Amanda, is heading to college soon, and Deborah worries about having an empty nest. She thinks another child might be the answer. Her husband, Richard, however, may not be willing to start over so late in life.

Oncologist Emma Blake has dedicated her life to finding a cure for a rare brain cancer. Twenty-five years ago, Emma’s childhood friend Kate died of glioblastoma, and Emma vowed to annihilate the deadly disease. Now, Kate’s father, Ned, is pushing her to work harder to fulfill that promise. When Emma discovers she’s pregnant, she’s torn between the needs of her family and the demands of her work.

Will I have the chance to explain to little Erin why I had to go? Even if I do find the strength to return, what will my mother have told her? Only one person really knows what happened and why I had to do what I did. I know the truth will come out some day. I don’t expect forgiveness. The only thing I hope is that my family can survive the fallout....

For Esther, it’s proving hard not to feel bitter watching Lucas enjoying his successful career, not to mention the attentions of his gorgeous, intelligent, and predictably younger lover. She meanwhile is struggling to forge a new life for herself, navigating the pitfalls of modern dating, while trying not to despair at the cost of living as a single woman of a certain age. Then Lucas faces a shattering accusation at the same time as their children Dylan and Lily, start to implode.

Our family of three is perfect. Just me, Noah and our teenage daughter Maya. The day the police knock at our door, telling us about the car accident, is the worst day of my life. My heart shatters, but what they say next almost makes it stop beating: Noah was in the car with another woman who died at the scene. Her two-year-old girl, Luna, miraculously survived. With Noah fighting for his life, I’m desperate for the truth, and when I search his desk, I find checks made out to Luna’s mother. Did my loving, loyal husband have a secret family all along?

‘I’m sorry, Sam’s not available,’ says the woman who answers my husband’s phone. I can’t place her voice, so I politely ask who she is. Her answer sends my world spinning out of control: ‘I’m his wife.’

Finally, Cath has met someone: a man she loves, Robin, and who adores her in return. And after years of managing fine on her own, running a successful business, raising her son and caring for her elderly mother, she feels she deserves some happiness. She expected everyone to be delighted for her. But her friends and family are suspicious of Robin. And Rebecca, a desperate single mother whom Cath has hired as a live-in housekeeper, doesn’t trust him either.

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.

I knew on the day of the attack that our lives were changed forever. What I didn’t know then was that I’d never see John again after he deployed. One day he was living with me, sleeping next to me, making plans with me. The next day he was gone. That was five years ago. The world has moved on from that awful day, but I’m stuck in my own personal hell, waiting for a man who may be dead for all I know. At my sister’s wedding, I meet Eric, the brother of the groom, and my heart comes alive once again.

Ainsley O'Leary is so ready to get married - she's even found the engagement ring her boyfriend has stashed away. What she doesn't anticipate is for Eric to blindside her with a tactless breakup he chronicles in a blog - which (of course) goes viral. Devastated and humiliated, Ainsley turns to her half sister, Kate, who's already struggling after the sudden loss of her new husband.

Breezing into the tony seaside paradise of Westport, Connecticut, gorgeous thirtysomething Piper Reynard sets down roots, opening a rehab and wellness space and joining a local yacht club. When she meets Leo Drakos, a handsome, successful lawyer, the wedding ring on his finger is the only thing she doesn’t like about him. Yet as Piper well knows, no marriage is permanent.

Brooklyn Hewett hasn't set foot in Cape Harbor for fifteen years - not since an accident claimed the love of her life, Austin Woods. Desperate to move forward, Brooklyn has focused on raising her daughter for the past fourteen years. But when the opportunity comes along to renovate the old Driftwood Inn, Brooklyn knows it's time to go home. But it won't be easy. For one, Austin's best friend, Bowie Holmes, still lives in Cape Harbor. Brooklyn hasn't quite been able to forget him: not since the night they spent together

Despite being the youngest partner at her firm, Corporate Attorney Davy Dugan is gunning for a recently vacant name partnership—it would mean finally having the power to make a real change in her conservative workplace. But 80-hour workweeks don’t allow any time with her much younger half sister, Tally, who doesn’t seem to need Davy in her life anyway.

Three women - and a betrayal that changes everything. In the wake of a spectacular betrayal, three women are forced to face the uncompromising truths about the choices that have shaped their relationships with those they love most. After such a disaster is rebuilding even possible?