Well you have to hand it to Pier Paolo Pasolini - he had one hell of an imagination. Here he devises a story of a group of nine young men and women who are apprehended by four powerful Fascist officials and held captive for use in some of the most degrading and painful games of sex, humiliation and abuse. I was warned not to eat chocolate before I saw this, and towards the end of this bizarre depiction of cruelty, depravity and exploitation it became quite clear why - and I'd reiterate that here. There is something profoundly desperate about the film. It has nothing even vaguely redeeming about... read the rest.
Wow! You can't escape the fact that this movie pushes the limits of disturbing art! Many will call it sick. I suspect the point of this film is more about the depravity and dehumanization of fascism, political corruption, totalitarianism, and morality. I have not read the Marquis de Sade's work on which this film was based.
It isn't possible to "un-see" a film, so be prepared if you choose the experience. It was described to me as "horror" before I watched it, and I'm not sure it truly captures the film's genre. I can't think of a film genre that adequately describes it.