V/H/S: VIRAL's sections include the narrative of a deranged illusionist who gets a magical thing of excellent power, a homemade machine which opens a doorway to some parallel environment, adolescent skaters that unwillingly become goals of a Mexican passing cult ritual, and a menacing, dark association that is tracking a serial killer. The sections are tied with a set of teens' narrative following a car chase in LA that unwittingly become celebrities of the following internet sensation.