I remember watching this movie lots of times when i was younger. I’m pretty sure it was in Spanish. It was about this group of young adults who are in a abandoned building and they start getting killed by some serial killer. It was pretty gory and I remember one of the scenes where the kids would have sex in a a bathroom and they’d get killed after that. Does anyone what this movie is called?? There’s some type of rock song that is played at the end of the movie.