Shockingly BAD, the director takes you through 4 painful hour long episodes showing off every litte conspiracy theory that internet sleuths can come up with, basically the documentary equivalent of a click bait (BTW hiding a new tubercolosis strain, for real??!!??)
The director purposefully withdraws critical information and rearranges the timeline to keep you stuck to the screen, akin to the worst cliffhanger.
You are better off reading the story on google rather that watching this