Sickan, the leader of the criminal Jönsson gang is incarcerated in a mental institution, attended by Dr M.A. Busé, who admire a handbook in crime that Sickan has been writing. Blackmailed by the nefarious banker Wall-Enberg, Dr Busé and Sickan's partners Vanheden and Dynamite-Harry execute Sickan's plan of stealing the valuable Black Diamond of the Romanovs from the National Museum.
Ulf Brunnberg , Björn Gustafson , Peter Haber , Birgitta Andersson , Björn Granath , Pontus Gustafsson , Bernt Lindqvist , Per Grundén , Weiron Holmberg , Lena T. Hansson
Sandrews
