To start of with, this film no fun ride, nothing glossy or Hollywood like happy endings bull.. It's hard as nails, nihilistic and pretty gutwrenching. It also comes over as very realistic.
The director also had a big hand in the (later) great French cop-series "Braquo" which is also excellent and very tough, and this has the same style.
Sure, it may lack story, I would say it's almost like watching a documentary: a day in the life of... But the happenings that unfold are told with so much vigour and relentlessness (is that a word?) that they kept me glued to the screen the whole 107 min.
Always on the lookout for anything this raw and another reviewer compared it with another French jewel "Dobermann" which as you will understand I absolutely adore as well. But the two are not at all comparable. They are in fact worlds apart with "Dobermann" being a comic-book like eurotrash/punk action adventure and this a slick slice of painful underworld realism.
Absolutely stunning 9/10