Klausner invents a sound machine to capture sounds inaudible to humans. He invites Dr. Scott to his lab to demonstrate his machine. Dr. Scott is skeptical but listens as Klausner plays strange sounds he recorded from plants and other sources. As they step outside, neighbors have gathered, suspicious of Klausner's sanity. Frightened, Dr. Scott flees, and in the chaos that follows, Klausner's precious machine is destroyed.