A woman is found murdered in a closed amusement park. A young couple who happen to be there at the same time become, without their knowledge, suspects for the murder. They are chased by a large number of police but only Martin Beck believes them to be innocent.
- Genero: Crimen, Drama, Misterio, Suspense
- Actores: Gösta Ekman, Kjell Bergqvist, Rolf Lassgård, Johan Widerberg, Marie-Thérèse Sarrazin, Tomas Norström