Probably more visual theatre than circus, Aurélia Thiérrée's Murmurs is, like her previous work Oratorio, directed and designed by her mother Victoria Chaplin (herself no stranger to the South Bank with three consecutive years of performing Le Cirque Invisible). Clever illusions and incredible, living costumes are a given, but the question will be whether the stagecraft is matched and controlled by a greater vision and intelligence: this one's about old buildings and streets, and the identities and past lives that settle there – rich territory, potentially.