The Olsson family move into a castle that turns out to be haunted. The kids, with their dim parents oblivious to all the strange things that are happening, are caught in the middle of a big mystery in the centuries old castle.
Gustaf Åkerblom , Linn Bülow , Anna-Lena Brundin , Peter Fridh , Sven Ahlström , Pierre Lindstedt , Andreas Andersson , Ana Gil De Melo Nascimento , Keijo J. Salmela , Gösta Engström