Ellie Mack was the perfect daughter. She was fifteen, the youngest of three. She was beloved by her parents, friends, and teachers. She and her boyfriend made a teenaged golden couple. She was days away from an idyllic post-exams summer vacation, with her whole life ahead of her. And then she was gone.

Now, her mother Laurel Mack is trying to put her life back together. It’s been ten years since her daughter disappeared, seven years since her marriage ended, and only months since the last clue in Ellie’s case was unearthed. So when she meets an unexpectedly charming man in a café, no one is more surprised than Laurel at how quickly their flirtation develops into something deeper. Before she knows it, she’s meeting Floyd’s daughters—and his youngest, Poppy, takes Laurel’s breath away. Because looking at Poppy is like looking at Ellie.

And now, the unanswered questions she’s tried so hard to put to rest begin to haunt Laurel anew. Where did Ellie go? Did she really run away from home, as the police have long suspected, or was there a more sinister reason for her disappearance? Who is Floyd, really? And why does his daughter remind Laurel so viscerally of her own missing girl?

Anna Fox lives alone, a recluse in her New York City home, unable to venture outside. She spends her day drinking wine (maybe too much), watching old movies, recalling happier times... and spying on her neighbors.

Then the Russells move into the house across the way: a father, a mother, and their teenage son. The perfect family. But when Anna, gazing out her window one night, sees something she shouldn’t, her world begins to crumble and its shocking secrets are laid bare.

What is real? What is imagined? Who is in danger? Who is in control? In this diabolically gripping thriller, no one—and nothing—is what it seems.