There are films that have a very difficult and challenging topic, that may also be very explicit. There are films that are shot in a way that makes them difficult to watch; very quick cuts; rapid camera movement; odd direction. There are films that have a compelling story-line.
This film is all of those.
To begin with, you may be forgiven for thinking that the cinematography methods used here are just to make it look 'arty'. However, as it progresses, I think the extremely dark, edgy, and confused imagery is a reflection of the state of Marc Barbé's mind; closed, confused, searching; helpless. The almost total lack of dialogue adds to the tension, as you are pulled along to an astonishing climax that will leave you thinking.
Whilst you are watching it not everything makes sense, however, in the days that follow, you will find yourself revisiting scenes in you head, wondering what they meant, working some of them out.
Sombre is a very difficult film to watch. It will affect you. You will think about it afterwards. To me, this is what films are all about. What you get out of this film is directly proportional to the amount you put in.