The Croatian Files (2013)

Like a joke, Carlos and Dani upload a video to youtube, about two erasmus guys apparently drunk, who lived in the same dormitory in Croatia, and who left behind their HDD full of videos. In the HDD they found that the videos were difficult to play, with interferences and errors. But they discover that somebody is following to the last year's guys. Black suit, black tie, white face, Slenderman is chasing new victims, and he will never stop. Always watching, no eyes.