Klausner is a sound engineer, "a frail man, nervous and twitchy, with always moving hands," who builds in his tool shed a device that can detect and amplify sounds from plants. For example, when a rose is clipped in a nearby garden, the machine registers a high-pitched scream. Scoot, his physician friend, drops by one evening and Klausner asks him to help with an experiment. He chops a tree with an axe, the machine picks up a great roaring sound of pain, and a giant branch falls crushing his machine. Klausner feverishly demands that the doctor paint the wound with iodine, as the physician tries to calm his nerves.