Fan Casting One Of Us Is Lying

The story begins when the five major characters — Bronwyn, Simon, Nate (Nathaniel), Cooper, and Addy (Adelaide) — attend detention with teacher Mr. Avery after he found phones in each of their school bags, against the high school's no-phone policy. During their detention they hear the sounds of a collision coming from the school parking lot, and while the students investigate through the window, Mr. Avery leaves to see if he can help. Simon — creator of the 'About That' gossip app in which the personal lives of students at their fictional American high school, Bayview High, are posted for the rest of the school to see — begins a speech about the stereotypical personalities of the other four students and how he, through the medium of his app, is the omniscient narrator. He then drinks water from a plastic cup, announces that it tastes bad, then suffers a fatal allergic reaction.