Amongst the millions of documents released in the ‘Pandora Papers’ leak of offshore financial information are a number of documents that one family business would rather have remained hidden. Together with The Guardian newspaper, File on 4 follows the trail of millions of pounds tainted by bribery and corruption. Piecing together key documents from the leak reveals how earnings from Unaoil – a company involved in the ‘world’s biggest bribery scandal’ - were invested into UK property on high streets as far apart as London and Aberdeen, Reading and the North East. Why does the UK remain a go-to destination for some of the world’s most tainted money? And why does it take a leak for the truth to be revealed about who’s really invested in some of the country’s prime property? The Pandora Papers is an investigation led by the International Consortium of Investigative Journalists. The documents have been shared with the Guardian, the BBC and other media partners around the world. Further reporting on other stories arising from the Pandora Papers leak are available online: https://www.bbc.co.uk/news/world-58780561 Reporter: Felicity Hannah Producer: Anna Meisel Additional Production: Kate West Editor: Gail Champion