You might remember StealthGamerBR from his many utterly insane Dishonored videos. I don't even know what to call them? Speedruns? Nope.
They're more like performances. Incredible performances. This shit is art. It's like ballet.
His most recent effort went up today, and it's a series of visceral assassinations mixed in with a couple of cheeky little stealth moments. Well worth watching.
And while you're at it, check out his playthrough of the game's final mission above. Unreal. It's not as new, but still outrageous.