A group of teenage girls investigate the disappearance of their friend, suspecting the involvement of the internet urban legend Slenderman. They perform a ritual to summon him, and soon, they start experiencing terrifying supernatural occurrences, leading them to believe the myth is real and they're being haunted by the Slenderman.
Slender Man
A group of friends in a small Massachusetts town become obsessed with debunking the legend of the Slender Man, but their investigation takes a dark turn when one of them vanishes.