Lokis. Rekopis profesora Wittembacha

In 19th-century Lithuania, Pastor Wittembach (Edmund Fetting) travels to a remote estate to research folk customs, where he befriends the estate's physician Doctor Froeber (Gustaw Lutkiewicz). The Countess Szemiot (Zofia Mrozowska), Michał's mother, is confined to the tower after a tragic event involving a wild bear. As Wittembach studies the folk beliefs, Michał (Józef Duriasz) begins to display odd animal-like behavior, leading to a terrifying series of events that may be connected to his supposed transformation into a Lokis, the half-human spawn of the bear that attacked his mother.