Slenderman

You are on your way to visit your friend Kate. Leaving the car near her house, you continue on foot.
Upon arrival, you find that the house is in disarray, and Kate herself is missing. In the room you find notes, one of which reads: "Go to the forest."
Before you finish reading the note, you hear a woman's scream and go in search of a friend. Taking the papers and a flashlight, you go out the back door and go deeper into the forest.
While searching, you find strange notes and drawings hidden in unexpected places. Tearing another note from a tree, out of the corner of your eye you notice the tall silhouette of a Slenderman, who is moving in your direction, obviously not with good intentions.