Originally Schatten - Eine nächtliche Halluzination, this German flick is very moody and atmospheric, but the fact that it attempts to tell it's story without the use of intertitles does cause the film to drag a bit. Story, score, most of the actors, all of that is fun, but given the film does drag, I find it a bit below average.
Have you seen this silent German film?
(http://fight-evil.com/movies/w/warningshadows-1923/1.jpg)