When Keira Woods' daughter mysteriously vanishes in the cellar of their new house in the country, she soon discovers there is an ancient and powerful entity controlling their home that she will have to face or risk losing her family's souls forever.

In 1850, on the isolated French island of Saint-Pierre, a murder shocks the natives. Two fishermen are arrested. One of them, Louis Ollivier, dies in custody. The other, Neel Auguste, is sentenced to death by the guillotine. The island is so small that it has neither a guillotine nor an executioner. While those are sent for Auguste is placed under the supervision of an army Captain.