<p>Could Dr Ruja and the missing billions be hidden in plain sight? A number of small leads seem to be pointing to one place.</p><p>Presenter: Jamie Bartlett Producer: Georgia Catt Editor: Philip Sellars Original music and sound design: Phil Channell Original Music and vocals: Dessislava Stefanova and the London Bulgarian Choir</p><p>Episode 7 of 8. Released weekly</p>