Helen learns that her baby might be 'Indigo'. While Irene's cryptic note leads them closer to the 'child-mother'. Conclusion of the conspiracy thriller by Matthew Broughton. Starring Romola Garai and Jonathan Forbes. Omnibus of the last five of ten headphone-filling thrill-ride episodes. Helen…. Romola Garai Freddy….. Jonathan Forbes Ram….. Ashleigh Haddad Serena.... Scarlett Courtney Policeman.... Adam Courting Tony.... David Hounslow Irene.... Sally Orrock Director: James Robinson A BBC Cymru Wales production for BBC Radio first broadcast in 2019.