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.
No trailer available.
Jönssonligan, literally the Jönsson Gang, is a Swedish comedy film series, originally based on the Danish series of films about the Olsen-banden, but later with unique scripts.
