A young American girl is found dead in Gota Kanal, Swedens largest channel. Since there are hardly any clues or evidence at all it seems as if the murder cant be solved. Martin Beck and his men are assigned to the case. Soon they find a likely suspect and together with a police woman they begin a cat and mouse game to catch him. Plot by Mattias Pettersson.
Gösta Ekman
as Martin Beck
Kjell Bergqvist
as Lennart Kollberg
Rolf Lassgård
as Gunvald Larsson
Niklas Hjulström
as Benny Skacke
Lena Nilsson
as Åsa Thorell
Ingvar Andersson
as Per Månsson
Bernt Ström
as Einar Rönn
Torgny Anderberg
as Evald Hammar
Jacob Nordenson
as Folke Bengtsson
Anita Ekström
as Inga Beck
Tova Magnusson
as Putte Beck
Agneta Ekmanner
as Greta Hjelm