The film narrates the day-to-day existence of a filmmaker wandering through his city (Brussels) and who has a notion to follow in the footsteps of dramatist Antonin Artaud and visit the Tarahumara people of Mexico. This is a film about intimacy and friendship. Written in the first person, it places Boris and Brussels in the centre of the universe, here represented by the crazy, vertiginous, endless spiral of the biblical Tower. It is Boris's diary and self-portrait. He plays himself on screen (as do the cast of a hundred who also allowed themselves to be “babelised“).

"’Magnum Begynasium Bruxellense’ is a living chronicle of the inhabitants of the Béguinage area of Brussels, so named because it is located over the site of the old béguinage. Conceived of as an encyclopaedic inventory, the film is composed of around 30 chapters interlinked like so many pieces of a jigsaw puzzle, or an anthill of numerous and overlapping galaxies. It unrolls itself in the spaces and cracks of a day, beginning at dawn and ending at night. Beginning: One day... A strange story came to me... I had just woken up from a long dream... End: I walked the length of the canal over the wet cobblestones with my eyes shut, between deep walls, under trees long ago defeated. It was winter. The sun blinded me. It did not warm me. I thought I was travelling towards death." (source:
, translated at Argos)