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.