The documentary centers around the 2014 stabbing of a young girl by her two 12-year-old friends in a Milwaukee suburb.
The girls, Morgan Geyser and Anissa Weier, claimed they were motivated by The Slenderman, a fictitious ghoul created by an internet blogger.
“The narrative does not revolve around guilt or innocence but instead the court’s deliberation whether the girls should be tried as adults or children.” Beware the Slenderman director Irene Taylor Brodsky said.
The documentary will weave together interviews, file footage, and the girls’ taped confessions to build the narrative of the shocking crime.
Beware the Slenderman premieres on HBO on Jan. 23, 2017.
Bradford Hornsby is an editor, music writer, web producer, and pop culture blogger for CBS stations in the San Francisco Bay Area. Find him on Twitter at @bradfordhornsby.