In ancient Greek tragedy the term "catharsis" was used to describe the relief and purification of the spectator, while he experienced and identified with the emotions of the tragic hero on the stage, and identification - according to Aristotle - was supposed to have a healing effect on the emotions of the spectator.
This is exactly my own experience after waching this dark and depressing film, and after being in this hell on earth for 2 hours. It's almost unbearable to watch, but somehow you get a sense of relief.
Most of the scenes are shot in the bleak and wintry streets of Montreal, where the camera is following the protagonist Alex and his fellow addicts in their endless pursuit for new sex clients and drug dealers - or in dark claustrofobic rooms where they minutely prepare the next fix to get a moment's escape from the harsh realities of life. Having sex is another way to escape, but it has become transactional, and all the sex scenes are rough and mechanical, void of tenderness and affection.
Maybe I am being overly optimistic, but I sense a tiny spark of hope in the final scene. Once again the camera is following Alex in his endless pursuit of a fix, but the streets are not empty, they are filled with people, the snow has almost vanished and it is not twilight, but broad daylight.
