Slender Man

One night, four friends, Wren, Hallie, Chloe and Katie, summon the Slender Man after hearing some of the boys from school were going to do it. A week later, Katie disappears and the other three girls go to her house to investigate for clues. The three discover that Katie had been involved in the occult, and that she wanted to be taken by the Slender Man. However, the three girls decide to make contact with the Slender Man, in the hopes that they can get Katie back in exchange for something else. Wren, who has been researching the Slender Man mythology, warns Hallie and Chloe not to open their eyes while the three are making contact with the Slender Man, because seeing the Slender Man will result in death or madness. However, Chloe panics and opens her eyes and comes face to face with the Slender Man. Some time later, the Slender Man enters her house and drives her insane. Soon after, Hallie starts having visions of the Slender Man. Hallie goes on a date with Todd, and has a vision, soon after Hallie explains her situation to Todd and warns him to not watch the video. Read more on Wikipedia.