This document analyzes how the poster for the film "Insidious" conforms to characteristics of the thriller genre. It discusses how the poster features a child demonstrating signs of demonic possession through his scratched-out eyes and expressionless stare, implying narratives of being watched and possibly murdered. Shadows, confined spaces, and a figure in the window also denote themes of being watched and watched typical to thrillers. Elements like shadows, the clouded sky, isolated house, and near-dead trees and leaves further iconographic connections to darkness, evil, death, and isolation common in the thriller genre.