Bibi Nordin

The photographer Göran finds his friend Stig F Dahlman's dead in the basement. The police consider the case as an accident, but Göran suspects murder.

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.