The document discusses sound design ideas for a movie trailer called "The Basement". It divides the trailer into three sections for sound design purposes. The first 30 seconds will feature unsettling non-diegetic sounds like nails scraping and knocking to set an uneasy tone. From 30-60 seconds, all non-diegetic sound will cut out during a pivotal scene, then return along with a child's singing and increasing heartbeat rhythm. During the final minute, the heartbeat and other instruments will build to a climax, then cut to just the child's voice and a rising scream for an unsettling effect. The trailer aims to disorient viewers through innovative sound design that enhances the horror elements and leaves a lasting impression.