In 2009 Dr Ruja and her father bought a metallurgic factory in Southern Germany. What does this have to do with her disappearance today? Those who knew her at the time tell a strangely familiar story about the impressive businesswoman who came to save their workplace.

Presenter: Jamie BartlettProducer: Georgia Catt Editor: Philip Sellars Original music and sound design: Phil ChannellOriginal Music and vocals: Dessislava Stefanova and the London Bulgarian Choir

Episode 6 of 8. Released weekly.