Somewhere between filmed performance, fictional film and plastic experiments, Quartz follows young adolescents messing about and drifting in an underground that evokes cave art. Through their body, their gestures and their connection to their mobile phone, their desire to produce and make images is reflected, thus questioning, in a metaphorical way, the discovery of the Image by the first men.

Having grown out of an experiment carried out in collaboration with adolescents in Hauts-de-France, who are therefore non professional actors, and shot in places that are sometimes out of bounds to the public, the film oscillates between a deliberate realism and a feeling of unreality.
Like the increasingly composite underground, the music evolves as they progress and appears as a distant echo that draws the characters into the depths. Based on a Euclidean system reminiscent of the resonant frequencies of quartz, halfway between analog and digital, the soundtrack gives the film its temporality while the senses are disturbed.

Shot just before the COVID-19 pandemic in 2020, the film anticipates the ordeal of lockdown imposed on the global population, and presents individuals who are struggling, showing resilience. How can union and community be maintained through the ordeal ?