‘Beware the Slenderman’ Documentary Coming Soon to HBO

Based on the events that led to two 12-year-old girls stabbing a classmate in the Wisconsin woods two years ago, the new documentary ‘Beware the Slenderman’ will premiere this weekend (March 11, 2016) at South By Southwest and will then make its way to HBO.

The documentary’s synopsis:

BEWARE THE SLENDERMAN tells the story of the internet’s elusive Boogeyman and two 12-year-old girls who would kill for him. Morgan Geyser and Anissa Weier lured their best friend into the woods, stabbed her 19 times, then set out on an odyssey to meet the tall and faceless man known online as Slenderman.

Shot over 18 months with heartbreaking access to the families of the would-be murderers, the film plunges deep down the rabbit hole of their crime, a Boogeyman and our society’s most impressionable consumers of media. The entrance to the internet can quickly lead us to its dark basement, within just a matter of clicks. How much do we hold children responsible for what they find there? 

Here’s a look at the poster: