Classic storytelling is out of place when it comes to picture the holocaust. Obviously the film was not destined to be unfinished but sometimes an accidental act is a blessing. The fragmentary nature of the movie is relevant here as the main character tries to recollect what seems an awful dream, something that you can hardly put in words nor rationalize and make sense with it.
The encounter on the ship, the interaction with the female nazi guard, the night scenes at the camp. the filming material (actual footage in situ, the photos, the voiceover narration)... an attempt to recollect and rebuild after a major blow to the civilization.
This is a haunting and unique piece of cinema.