After twenty years Sarah Hirt returns to her rural hometown in Swiss canton Basle-Land, where she has spent part of her childhood. Together with her mother und brother she wants to clear her deceased grandfather's house. There she finds a mysterious book, a collection with local myths about witches, dwarfs, ghosts and the so called "Bachpfattli". After a nightly visit from an old man who wants the myth book and after her brother sees a giant dog and suffers from a swollen head the next day, Sarah realizes there's something going on in her hometown.