The Night Porter is a controversial and difficult film. Its main story is about a Nazi concentration camp officer and the girl he sexually tortured during the war reuniting for something like a love affair. There is more than that, and it is much more thoughtful than that salacious summation suggests. The Criterion Collection did a nice job of bringing it to Blu-ray with plenty of extras helping viewers to parse what the film is doing. You can read my full review here.
themidnightcafe.org 
This is one of those movies I’ve put off watching for 40 plus years. I love Charlotte Rampling and I’m a sucker for quality Criterion releases that I haven’t seen, but it’s tough to find the right mood to subject myself to 2 hours of “Nazi Chic” (as Ebert put it).
I haven’t watched it since I wrote my review several years ago. It is an interesting film, and I think it is worth watching, but yea, it isn’t an easy or a fun watch