Marzidovšek Minimal Laboratorium (MML) is a portrait of the (o)cult Slovenian minimalist, sound experimenter and versatile creator Maria Marzidovšek (1961-2011). With his independent MML cassette label, Mario was the key figure of Maribor's underground in the 1980s: musician, lab experimenter, innovator, performer, and provocateur. He was ubiquitous and highly productive: in just a few years, he produced between 70 and 90 cassettes (both authorial and compilation) on provisional equipment. The MML label, in all respects, is recognizable for its do-it-yourself aesthetics and was a unique one-man-brand; while, Marzidovšek himself was an authentic one-man-band, who withdrew from public life in the 1990s and vanished into the background. The MML documentary, heavily lined with Marzidovšek’s music and graphic materials, tries to follow in the spirit and form the creative explosiveness of a portrayed man who was also one of the pioneers of the Yugoslav / Slovenian old school of the industrial / noise scene. (authors)