Making a Murderer is a documentary about a young guy, with an extremely low IQ who is convicted of a brutal assault, after having a history of abuse with the law, but that isn't all of the story.
This documentary is fucking insane. It is 100% worth a watch. 96% on Rotten Tomatoes and just crazy.
I don't want to spoiler anything, but this is a must watch. I don't think I've been this compelled by a story in a long time.