Setelah kematian sang ayah, sepasang kakak adik diperkenalkan dengan saudara baru oleh ibu angkat mereka. Belakangan, keduanya menemukan ritual mengerikan di rumah terpencil milik ibu angkatnya itu.

After the death of their father, a brother and sister are introduced to a new sibling by their foster mother. Later, the two discover a gruesome ritual in the foster mother's secluded home.