White Noise tells the story of Jack Gladney; his fourth wife, Babette; and four ultramodern offspring as they navigate the rocky passages of family life to the background babble of brand-name consumerism. When an industrial accident unleashes an "airborne toxic event", a lethal black chemical cloud floats over their lives. The menacing cloud is a more urgent and visible version of the "white noise" engulfing the Gladneys - radio transmissions, sirens, microwaves, ultrasonic appliances, and TV murmurings - pulsing with life yet suggesting something ominous.