I just saw this film in Paris. The showing was accompanied by a band that played wonderfully. The film is very interesting. Some of the scenes seemed a little long and were not particularly innovative. I also wasn't that taken with the female protagonist-- not with her personality or the acting. However the film also includes couple of scenes that are mesmerizing. In particular the scene in which the husband goes into a mysterious building and encounters a roomfull of men, who are all potential detectives, is one of the most remarkable I've ever seen. Together with the music, the film is delightful.
Review of Le brasier ardent
