We've slapped the NSFW tag on music videos before, but ultimately it's all been fictional violence and gore. This is neither fictional nor even remotely alright to be watching at work or if you've got a weak stomach in general.
Shining, the Swedish one, went for fucking broke with the real-world footage of violence and actual murder on this one. I sat through the whole thing and… well damn. There is no shortage of horrible representations of the real world in here.