In a room in Paris, sound designer Nicolas Becker and director Darius Marder sat in silence. They were inside an anechoic chamber, a room designed to swallow noise. In the silence, their bodies awoke. Tendons and bones creaked, hearts thudded; blood found a voice as it coursed thdrough veins. The sound of silence was anything but — a useful reminder for the project they were about to embark on.