Maurice Denham, Roger Delgado, David Spenser, and Miriam Margolyes star in an atmospheric BBC full-cast drama from Doctor Who writer Victor Pemberton.
Listen! Quiet! Everybody stand still for a minute. There's something. Can't you hear it?
During an abnormal heatwave in March, the air becomes thick and dull. Nothing moves, and you can almost hear the silence. Something was bound to happen. Download and start listening now!