Penance

Probably best compared to a combination of Saw and the Killing Room. Only simpletons with an attention span disability will call this torture porn. I'm starting to wonder if there's a group of people out there who simply go around labeling stuff torture porn to turn people off from otherwise great films (such as Martyrs).

It does have some nasty scenes, but more is left to the imagination than is shown, so that kills the porn element. There is torture, and largely the film involves a very psychologically disturbed person seeking revenge through torture.

So, psychological torture horror with some gore, yes. A Saw copycat, yes, in some ways. But that's far too simple to capture what's going on here. A very well thought out story.