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 true identity; the 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 "völkisch" occultism, opening an unearthly abyss in which every moral and principle is tested.