Elle Edwards, who has been told she's a product of her mother's sinful mistake, has never gone to school, never met a teenager her own age, never even been allowed off of her grandparents' property. Convinced that their granddaughter is infected with evil, Myra and Prescott Edwards believe that only the harshest child-rearing methods will prevent Elle from becoming an instrument of the devil.

Caroline Bryer is the daughter of a very conservative TSA agent and former military brat, Morgan Bryer. Her mother, Linsey Bryer, is a descendent of the Sutherland real estate family. Their organized, suburban life in Colonie, New York is rigorously regulated and leaves little room for deviation from the norm. When Linsey, Morgan, and Caroline attend the wake of their neighbor Mr. Gleeson, they meet his charming daughter Natalie “Nattie” Gleeson, who works for the American ambassador to France. Linsey and Nattie strike up a fast friendship.

Pru Dunning has everything she ever wanted: a successful boyfriend, a thriving nursing career, and a truly comfortable life. But then the strange voicemails start. Scarletta, the woman calls herself. She seems to know Pru, although Pru certainly doesn't know that name, nor does she recognize the glamorous voice leaving her poisonous messages. Pru begins to carefully investigate. But when she suddenly becomes a person of interest in a murder case, it feels like Scarletta’s toxic voice, lashing out from the shadows, will silence all beauty in Pru’s perfect life, once and for all.

In her fine new Virginia school, Dawn Longchamp feels happy and safe. But nothing is what it seems... Now Dawn and her older brother Jimmy have a chance for a decent, respectable life, and Dawn’s secret, precious hope to study singing can come true. Philip Cutler, the handsomest boy in school, sets Dawn’s heart on fire. She is deeply devoted to her brooding brother; but with Philip, she imagines a lovely dream of romance...

As identical twins, Haylee and Kaylee Fitzgerald have always done things in exactly the same way. Under their mother's guidance, their every outfit, every meal, and every thought was identical. But now things are different. With Kaylee back at home after her sister's betrayal, her life has been turned inside out. Both her mother and Haylee are away, and Kaylee's alone and more lost than ever.