Four high school girls perform a ceremony to summon internet boogeyman Slenderman. Once they see him, they can't get rid of him. And one by one, the girls are driven mad, die, or disappear.
Slender Man
Joey King
Julia Goldani Telles
Jaz Sinclair
Javier Botet
Annalise Basso
Alex Fitzalan
Taylor Richardson
Jessica Blank
Michael Reilly Burke
Kevin Chapman
Miguel Nascimento