The Prisoner is a play co-written and directed by 93 year-old Peter Brook and Marie-Hélène Estienne. It's on until 24 March at the Bouffes du Nord Brook's old theatre where he also housed a theatre laboratory. In this week's Culture in France RFI's Rosslyn Hyams speaks to Brook about his play, and to Ery Nzaramba, who plays one of the main parts.