Jönssonligan och den svarta diamanten

Jönssonligan & den svarta diamanten (English: The Johnson Gang & the Black Diamond) is a Swedish film about the gang Jönssonligan made in 1992. It's the first film not to feature the original gang leader Sickan played by Gösta Ekman. The famous theme of the previous films is also replaced by a new theme to mark the absence of Sickan. The original theme only plays briefly in a single scene.

The film is loosely inspired by the film The Testament of Dr. Mabuse.

Plot
Ragnar Vanheden and Harry "Dynamit-Harry" Kruth find themselves hooked up with a confused doctor M.A. Busé in a scheme to steal the Romanov family's black diamond.