"We all saw (it) in the news, we all read about it in the paper and it's something very close to home," said viewer Monica Moe.
'Beware the Slenderman' takes a look back at the infamous 2014 crime out of Waukesha when two 12-year-olds allegedly attempted to kill their friend in order to please the fictional character. Payton Leutner was stabbed nineteen times after a sleepover.
"I thought boy, those girls are crazy. What's wrong with them?" said another documentary viewer.
The film shows confessions from the two girls and details their obsession with ‘Slenderman’. The girls believed he wanted them to kill their friend.
"I think you can't responsibly talk about this crime without talking about the Internet," said film director Irene Taylor-Brodsky.