An excellent and very pure film noir directed by Philippe Lefebvre.A Paris vice cop makes his rounds through the strip clubs, bars, sex clubs, and haunts of those who live by night. Simon Weiss, played by the charismatic Roschdy Zem, knows this world like no one else. He's "dirty", yes, but possessed of a code of order and controls this Nightown as his own personal turf. He's a complicated man and as much a citizen of this "upside down world" as any of its denizens. He knows all and sees all. It all takes place in one night's tour of duty. Simon laments to his driver, "the night seems to drag on." Believe me, this one doesn't. Seen at the Rendez-Vous with French Cinema at Lincoln Center. Should have a great run when released in the U.S.