Not all is as it seems with Dr Ruja's revolutionary cryptocurrency, OneCoin.
The Missing Cryptoqueen is an eight-part series for BBC Sounds, with new episodes every Thursday.
Presenter: Jamie BartlettProducer: Georgia CattStory consultant: Chris Berube Editor: Philip Sellars Original music and sound design: Phil ChannellOriginal music and vocals: Dessislava Stefanova and the London Bulgarian Choir
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