DIE PFÖRTNERIN (English Title: MOTHER SUPERIOR) is a psychological horror film.
1975, Rosenkreuz Manor. Sigrun starts a new position with the eccentric Baroness Heidenreich. A shared longing binds the two women together: the old lady’s memory contains the secret to Sigrun's past; the young nurse’s life force holds the key to the future for the Baroness. On the path to self-discovery, Sigrun is confronted with the sinister world of folkish occultism, opening an unearthly abyss in which every moral and principle is tested.