The document analyzes the timeline and structure of the trailer for the 2003 film Texas Chainsaw Massacre. It identifies three key periods: an initial period of calm with happy characters; a moment of disequilibrium when the plot begins and fear is shown; and a final period of unrest marked by screams, attacks, and the reveal of the killer and film title. The analysis breaks down the trailer into these narrative beats and examines how music, editing, and visuals create tension and pace throughout.