If you have not yet seen Michael Haneke's brilliant film Funny Games (the original, or the re-make in English that was just released), it comes highly recommended from me.
In addition: the music that is so integral to the film is by a band called Naked City, a project of composer/musician John Zorn. I'd also recommend a listen to Naked City's "Torture Garden", which you can find on CD under the name "Grand Guignol", which additionally features some of Zorn's more classical arranging.
The use of Naked City's music in the film was not only aesthetically fitting, but the thought and histories behind the music and the film work well together, too. The name of the Naked City LP, "Torture Garden", is presumably taken from a play produced at The Grand Guignol in Paris. Read more about The Grand Guignol here...how fitting.
Really interested in this whole question of pain and torture and terror, and why we as spectators are so interested in seeing on stage/film that which we ardently avoid in our everyday lives. When does it stop being escapist and cathartic, and how can it begin to make an intervention, to say something (as I feel Funny Games does)?