BBC Two look at the rise and fall of Abraaj

With never-before-seen personal video diaries from businessman Arif Naqvi, alongside interviews with some of his powerful friends, former colleagues, and critics, the film tells the extraordinary rise and fall of Naqvi’s $14-billion private equity firm Abraaj.

Businessman Arif Naqvi was a friend of prime ministers and billionaires. Through Abraaj – backed by the UK and US governments, and Bill Gates – he made investments in delivering healthcare to some of the world’s poorest places. Then it all went wrong.

Investors became suspicious their millions were being misused and Abraaj collapsed into liquidation. Naqvi was arrested and detained in Wandsworth prison, charged by the US Department of Justice with securities fraud, wire fraud and conspiracy. He received the largest bail ever set in the UK, £15 million, and has now spent almost three years under house arrest awaiting extradition, maintaining his innocence. Was he motivated by greed or to do good?

Billion Dollar Downfall: The Dealmaker, tomorrow (11th Jan), BBC Two at 9 pm