Murders in Gravity Falls peak the interest of the young self-proclaimed detective and paranormal investigator Dipper Pines, but with further inspection, he learns maybe he should have stayed out of it. Human!BillDip. In this fanfic, Bill hadn't been introduced yet, and he only appears in human form. These Fic is based off the song "Horror Of Our Love" by Ludo. I felt like it was potential for a great story, wether or not you know the true meaning of the song itself.