No backinfo, but possibly Brazil, methinks? The audio reminds me of a horror comedy job.
There’s a couple of real sadists who film themselves butchering a corpse of a killed woman. They hit her on the head with a hammer, and stab her in the various parts of face, including the eyes, mouth and nose, with a bladed tool of sorts. No pussy-passes in this one.
Props to Best Gore member @1purple8 for the video. Sorry, couldn’t find a version without the green sides: