This is a gripping documentary that I have described to my friends as a real life Saw documentary. It begins with a group of people on Facebook trying to track down someone who is posting videos on Youtube of them murdering kittens. There are multiple horrific videos and some of them are explained in detail so if you're queasy (like me) then brace yourself. You don't actually see any more than the beginning of the videos but you can hear it and it's enough that I haven't been able to stop thinking about it. I will probably have nightmares tonight.