Violet enters “Elm Hollow,” a private school for girls on the outskirts of a sleepy coastal town. For her, this is a chance to start over after a terrible accident, leaving her demons behind. A little strange and unsure of herself, she desperately tries to fit in with her classmates—and soon she’s invited to an advanced study group led by the charming and mysterious arts teacher Annabelle. The girls study not only the history of art, but also the school’s mysterious past, of which the founder was burned at the stake for witchcraft. The program includes Greek myths and Celtic legends, the history of witch trials, and ancient rituals. And no matter how much Annabelle convinces her students that the lessons are purely academic, they can’t resist practical experiments. Gradually, their actions grow darker and get out of control. How far will the girls go to protect one another… or to destroy each other?