The document provides context about the film Unfriended. It establishes that the main enigma or mystery of the film is who uploaded an incriminating video and why a ghost is attacking the friends. It notes that the trailer builds anticipation by counting down the characters and leaving the audience to wonder who will die first and how. Reviews shown in the trailer aim to convince the audience the film is scary and worth seeing based on its fast pacing and tension. Throughout the trailer, fast editing, screaming, and glitches are used to create suspense without revealing too much of what happens. Camera angles are limited since the film takes place over video chat, but close-ups are used to heighten tension.