All around the world, dirty money pollutes public and private life. Those who wield it are a diverse cast of businessmen, politicians, and criminals - and sometimes, they're all three. In this anthology, Vanessa Kirby meets the investigators using open source intelligence to expose the murky relationship between international institutions and Russian financial crime. In Part 3, author and journalist Oliver Bullough exposes the UK's role as a facilitator of questionable foreign wealth - a butler to the world. When a shady Ukrainian businessman with ties to the Kremlin embeds himself at the heart of the British establishment, Oliver is determined to investigate his true allegiances. Could YOU follow the breadcrumbs? From SPYSCAPE, the home of secrets. A Cup And Nuzzle production. Series producers: Gemma Newby, Joe Foley. Produced by Morgan Childs. Music by Nick Ryan