Sounds interesting, i'll be looking out for these!..This brings to mind the German 1977 film Aus einem deutschen Leben. Starring well-known German actor Götz George (son of Heinrich George, by the way), it is the film adapation of La mort est mon métier [Published in Germany as Der Tod ist mein Beruf].
A slightly fictionalized biography of Auschwitz commandant Rudolf Höß, (here called Franz Lang), this is a rather gripping psychological study of one man's journey into becoming an industrialized mass murderer, mostly from a perverted sense of duty with an unquestioning belief in the principle of order and obeyance, combined with a misguided sense of patriotism and a bit of careerism.
The film differs from most of the others mentioned above as it is fully told from the perspective of a perpetrator (or rather, from a perspective accompanying said perpetrator).
Aus einem deutschen Leben (DE 1976/1977) - Deutscher Trailer - YouTube
Death Is My Trade (1977) - IMDb
Aus einem deutschen Leben
Another Holocaust-related film starring Götz George is the fictional Mengele-in-court drama Nichts als die Wahrheit [English title After the Truth] made in 1999.
After the Truth - Clip: The Return of Mengele - YouTube
Nichts als die Wahrheit (1999) - IMDb
After the Truth - Wikipedia, the free encyclopedia