Gabby and Fred have just begun to adapt to their new life as empty nesters when Gabby makes a stunning realization: she can’t stand her husband. One night at a bar, Gabby meets an enigmatic younger woman named Ellis, and in a haze of drunkenness, she confesses that she wishes Fred dead. Surely she didn’t expect anything to come of it, but when she tries to track Ellis down again, she realizes that Ellis might not have been who she said she was.

On a hot summer night in Houston, two teenage girls-bright, beautiful, success-bound friends took a shortcut home from a friend's apartment to make their curfew. They never reached their homes. The next morning, the families of the two girls began a frantic search, organizing friends and neighbors and posting thousands of fliers across the sprawling city. But not until an anonymous 911 call four days later were the bodies of Jennifer Ertman and Elizabeth Pena finally recovered.

Helen Appleby just wants a quiet life. Recently released from prison for the manslaughter of her partner, she's trying to forget her past mistakes—all of them—to rebuild her life and move on. When she decides to open a bookshop, she’s certain this is the perfect new start. Here, amongst the quiet shelves of her shop and between the covers of her books, she can hide away from the real world and begin again. But the past can never stay hidden…

Devon Ferrell and Richard Belmont are engaged, in love, and from two different worlds. Devon is as eager to please Richard’s elite parents as she is to leave the traumas of her childhood behind. After all, the Belmonts are her family now. But being brought into the fold is unbalancing her. There are the piercing stares from Richard’s brother, the confounding whispers about Devon’s moods and health. It’s as if the Belmonts are looking for reasons to reject her, to fill her with self-doubt and put her on edge. It’s working. And no one seems to be on Devon’s side. Not even Richard.

On a December night in Austin, Texas, teenagers Jennifer Harbison and Eliza Thomas closed up the yogurt store where they worked. The girls were joined by Jennifer's younger sister, Sarah, and her friend Amy Ayers. Less than an hour later, all four girls were dead - tragic victims of an apparent fire. Until it was discovered that the girls had been bound and gagged, sexually assaulted, and shot execution style.