Unfolding in real-time "Unfriended: Dark Web"​​ is ​the most terrifying horror yet from the producer of "Get Out", "Happy Death Day" and "The Purge" and the ​makers of "Unfriended." ​When a 20-something finds a cache of hidden files on his new laptop, he and his friends are unwittingly thrust into the depths of the dark web. They soon discover someone has been watching their every move and will go to unimaginable lengths to protect the dark web. Rebecca Rittenhouse took to the BUILD stage to talk about the new horror movie.