"You will not be able to run from your destiny, my dear."

In the late nineteenth century, in the small seaside town of Partenit, Praskovia has fallen out of love with her husband, Tihon, and become involved in a torrid affair with another man. But that's not the only thing she's hiding.

When her daughter, Vasilisa, follows her into the woods late one night, she stumbles upon her mother's deepest secret--a dangerous fascination with the dark arts of witchcraft.

As Praskovia descends deeper into the world of black magic, Vasilisa is forced to go to desperate lengths to save her mother, and herself, from being consumed by the evil forces that have been unleashed.