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.
Martin Beck
Folke Bengtsson
Gunnar Ahlberg
Roseanna McGraw
Sonja Hansson
Mary Jane
Siv Lundberg
Kollberg, kriminalare
Elmer B. Kafka
Stenström
Projectionist
Martin Beck's Wife
Waitress
Mrs. Bellamy
Günes Fratt
American Passenger
Cleaner
Ship Hostess
Night Porter
Drunk
Doctor
Journalist
Journalist