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.

Nina Landry awakens on her 40th birthday, anticipating a day filled with excitement. She, her new boyfriend, and her two children are taking a trip - leaving their home on Sandling Island, off the coast of England, for a dream vacation. As soon as her 15-year-old daughter, Charlie, returns from a sleepover, they can get ready to leave. But Charlie doesn’t come home at the expected time. As minutes and then hours tick by, Nina’s annoyance soon changes to concern, and then to a chilling certainty that something terrible has happened.

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?

Before moving in with the Crouch family, Juno thought Winnie and her husband, Nigel, had the perfect marriage, the perfect son — the perfect life. Only now that she’s living in their beautiful house, she sees the cracks in the crumbling facade are too deep to ignore. Still, she isn’t one to judge. After her grim diagnosis, the retired therapist simply wants a place to live out the rest of her days in peace. But that peace is shattered the day Juno overhears a chilling conversation between Winnie and Nigel....

For nearly a year, Beth has been planning for her escape. She's thought through everything - a new look, new name and new city - because one small slip and her husband will find her. A couple hundred miles away, Jeffrey returns home from a work trip to find his wife, Sabine, is missing. Wherever she is, she’s taken almost nothing with her. Her abandoned car is the only evidence the police have, and all signs point to foul play.