I will keep my review short. The story about the vanishing speaks to everybody's imagination. But the story is pretty straightforward, this is coming from somebody who has been working in psychiatry whole his life. She was bipolar and suffered clearly from a psychosis. I work with these people on a daily base. Yes, it can be so bad, people would bring themselves in strange situations. In that way 4 episodes is just too much for a story that could have been told in 2 episodes (at most).
I found this documentary much more interesting in another aspect. The way 8 years ago fake news was invented by stupid people on the internet just blowing their mind on things they have absolutely no knowledge about. I was heavily triggered by the youtubers/influencers claiming one stupid theory after the other. On the way almost destroying a young musician life. This is still the dark side of the internet and it saddens me to see where we are at almost a decade later.