Live from Kyiv. It's the grand final of the Eurovision song contest 2017.

It was a magnificent event, a magnificent party with a lot of singers from another

countries it was many happy faces it was the great view it was emotions which we like Ukrainian nation will remember for a long time.

A spring night to last year and under the stars on a rooftop in the Ukrainian capital Kiev

contestants from across the continent danced and

for the official after party at the end of the Eurovision Song Contest.

I'm Tim Hewell

and for assignment here on the BBC World Service

I've come to Kiev to recall that triumph for Ukraine.

Just three years earlier, it had ousted its elected President Victor Yanukovych in a bloody

uprising, against corruption, and for European values.

But what had really changed?

Ukrainian authorities now believe that the helipad that those revelers were dancing on was built with money stolen from the state and

assignment has discovered that Janakovic's circle profited from that Eurovision party even

years after the disgraced leader had fled the country.

This place brings in millions in profit every month and those millions go to the people who own it and they are the

family of Yanekevich.

In this program I follow the trail of that money 2,000 kilometers from the golden domes of Kiev to

the United Kingdom.

A very ordinary town in Britain

and a company that's still keeping its secrets despite the UK's efforts to become a beacon

of corporate transparency.

...