In a small town in Massachusetts, four high school girls perform a ritual in an attempt to debunk the lore of Slender Man. When one of the girls goes mysteriously missing, they begin to suspect that she is, in fact, his latest victim.

• Madhouse Entertainment
• Mythology Entertainment
• Julia Goldani Telles
• Joey King
• Jaz Sinclair
• Javier Botet
• Annalise Basso
• Alex Fitzalan
• Taylor Richardson
• Jessica Blank