One of the best mockumentaries out there, I didn't realise it was fake until I saw the multicamera work with the actors pretending to be TV crew.
Fake edit: WHAT DO YOU MEAN IT WAS REAL?!
No, in all seriousness, I actually dig the fact this documentary was biased, because unlike jury, judge and entire US watching TV at the time it allowed us to distance ourselves from the fact that Steven Avery was a violent, unlikeable, inbred hick with seriously dodgy past and company. We didn't get to see how all the circumstances put together undeniably mixed him into this crime, in whatever capacity, and how his life was the world where bad things were done to good people by nasty element.
Instead, because what we saw was heavily biased and filtered, we got to see what the judge and jurors didn't believe or pay attention to - the corruption, the overeagerness, the entrapment, the world where despicable things are done to terrible people by those rotten to the core, in the name of good. We got to see the world that's only charcoal grey, with no black or white or lines between the two.
And that made for absolutely fascinating viewing. It's like Fargo from nightmares. Better than any fictional crime story in the last decade.