The Shout stars Alan Bates as a mysterious travelling man who invades the lives of a young couple, played by Susannah York and John Hurt. Hurt is a composer, who experiments with sound effects and various electronic sources in his secluded Devon studio. The couple provides hospitality to Bates, but his intentions are gradually revealed as more and more sinister. He claims he has learned from an Aboriginalshaman how to produce a "terror shout" that can kill anyone who hears it unprotected.