Svein thinks his grandma's soul is in the process of being swallowed by mysterious aliens, and he mobilizes both his friends and his rat Halvorsen in an attempt to save her. Thomas Saraby Vatle, Luis Engebrigtsen Bye, Celine Louise Dyran Smith, Gard B. Eidsvold, Rut Tellefsen, Gard B. Eidsvold, Liv Bernhoft Osa Added on Netflix 2023-06-02.