Iris and Gabriel have just arrived home from a make-or-break holiday. But a shock awaits them. One of their closest friends, Laure, is in their house. The atmosphere quickly becomes tense as she oversteps again and again: sleeping in their bed, wearing Iris' clothes, even rearranging the furniture. Laure has walked out on her husband --- and their good friend --- Pierre over his confession of an affair and a secret child. Iris and Gabriel want to be supportive of their friends, but as Laure's mood becomes increasingly unpredictable, her presence takes its toll. Iris and Gabriel's only respite comes in the form of a couple new to town. But with them comes their gardener, who has a checkered past. Soon, secrets from all their pasts will unravel, some more dangerous than they could have known.

Amelie has always been a survivor, from losing her parents as a child in Paris to making it on her own in London. As she builds a life for herself, she is swept up into a glamorous lifestyle where she married the handsome billionaire Ned Hawthorne. But then Amelie wakes up in a pitch-black room, not knowing where she is. Why has she been taken? Who are her mysterious captors? And why does she soon feel safer here, imprisoned, than she had begun to feel with her husband?

When Alice and Leo move into a newly renovated house in The Circle, a gated community of exclusive houses, it is everything they’ve dreamed of. But appearances can be deceptive. As Alice is getting to know her neighbors, she discovers a devastating secret about her new home, and begins to feel a strong connection with Nina, the therapist who lived there before. Alice becomes obsessed with trying to piece together what happened two years before. But no one wants to talk about it. Her neighbors are keeping secrets, and things are not as perfect as they seem.

It’s Livia’s 40th birthday, and her husband Adam is throwing her the party of a lifetime to make up for the wedding they never had. Everyone she loves will be there, except her daughter Marnie, who’s studying abroad. But Livia is secretly glad Marnie won’t be there. Livia has recently uncovered a secret about their daughter that, if revealed, will shake the foundation of their family to its core. She needs to tell Adam, but she’s waiting until the party is over so they can have this last happy time together. Adam, meanwhile, has his own surprise for Livia: he’s arranged for Marnie to secretly fly back for the party. But before Marnie arrives, Adam hears some terrible news. Now he too is faced with a dilemma: Does he share what he's learned with his wife? Is hiding the truth the same as telling a lie?

Finn and Layla are driving along the highway when Finn decides to stop at a service station to use the restroom. When he returns, Layla is gone. That is the story Finn told to the police. But it is not the whole story. Ten years later, Finn is engaged to Layla’s sister, Ellen. Their shared grief over what happened to Layla drew them close. Still, there’s something about Ellen that Finn has never fully understood. His heart wants to believe that she is the one for him, even though a sixth sense tells him not to trust her. Then, not long before he and Ellen are to be married, Finn gets a phone call. Someone from his past has seen Layla --- hiding in plain sight. If Layla is alive --- and on Finn’s trail --- what does she want? And how much does she know?

Finn and Layla are driving along the highway when Finn decides to stop at a service station to use the restroom. When he returns, Layla is gone. That is the story Finn told to the police. But it is not the whole story. Ten years later, Finn is engaged to Layla’s sister, Ellen. Their shared grief over what happened to Layla drew them close. Still, there’s something about Ellen that Finn has never fully understood. His heart wants to believe that she is the one for him, even though a sixth sense tells him not to trust her. Then, not long before he and Ellen are to be married, Finn gets a phone call. Someone from his past has seen Layla --- hiding in plain sight. If Layla is alive --- and on Finn’s trail --- what does she want? And how much does she know?

Cass is having a hard time since the night she saw the car in the woods, on the winding rural road, in the middle of a downpour, with the woman sitting inside --- the woman who was killed. She’s been trying to put the crime out of her mind; what could she have done, really? It’s a dangerous road to be on in the middle of a storm. Her husband would be furious if he knew she’d broken her promise not to take that shortcut home. And she probably would only have been hurt herself if she’d stopped. She just can’t forget that woman, the woman she might have saved, and the terrible nagging guilt. Or the silent calls she’s receiving, or the feeling that someone’s watching her.