File 1: What happened?

Takes approximately 20 years after the incident of the first "unfinished" book. The story revolves around a group of friends who unintentionally discovered a USB flash drive labelled "The Missing Files". They checked its content and found five folders, each with a video inside, as they play the videos, they are shocked by the incidents that happened 20 years before. They slowly uncover the truth behind the Aswangs, and then -- they are slowly hunted down.