This is an excellent movie. Probably the topic isn't everyones cup of tea, and it sure isn't a comfortable and pleasant watch. But what you do get, is a very realistic, honest and unadorned account of the daily struggle to survive of a young male street-prostitute in a big city (Paris?). No romanticizing here, it's all bleak, harsh and hopeless. What makes it extra touching, is the fact that the main character isn't just driven by opportunistic motives, but desperately longs for love and affection, which he sadly enough projects on the wrong guy.
Actor Felix Maritaud gives a very strong and convincing performance, very brave too, since director Camille Vidal-Naquet doesn't hold back in realism, with a fair amount of graphic sex. This is clearly not aimed to tittilate any erotic senses with the viewer, if anything it's mostly akward and sad to watch, but it adds to the authenticity of this movie. Hiding or masking the sex would have felt like fake.
Another strong aspect of the movie is the fact that it doesn't moralize. We never hear how the main character came to do what he does or what his background is, so no justifications or freudian explanations like a troubled youth or anything. It's clear that he doesn't see anything wrong in what he does or why he should change his way of life, however pathetic and hard it may be. The choice he makes in the end of the movie is in line with this, although for us it's hard, if not almost impossible to understand.