Kalle Blomkvist and his friends intervene when a professor and his little son Rasmus are kidnapped.

---

Main Cast: Lars-Erik Lundberg, Peder Dam, Inger Axö, Eskil Dalenius, Sigge Fürst, Elof Ahrle, Ulf Johansson, Björn Berglund, Arne Källerud, Solveig Hedengran

Director: Rolf Husberg

Writers: Astrid Lindgren, Rolf Husberg

Editor:

Cinematographer:

---

Popular Double Features