They would stay in his chateau in the south of France and had homes across the world. It was an idyllic life, beyond anyone’s imagination.
Countess Alexandra Tolstoy, an aristocratic English woman, had her own fairy tale come true when she fell in love with the man of her dreams in 2008, an oligarch and one of Russia’s richest men, Sergei Pugachev.
Then, everything turned into a nightmare.
The story begins five years ago in London, where the two were living a life of enviable luxury in their sprawling Chelsea home with their three young children.
“We have a PA, two drivers, two housekeepers, an English nanny, and a Russian nanny as well as a French teacher for homework”, counts Alexandra as she gives a tour of her home.
“We moved here just after I’d had my first baby. Then we bought the house next door.”
Prior to that, Tolstoy had a privileged childhood; her father was a distant relative of the author Leo Tolstoy and Alexandra had attended an elite boarding school before working as a broker in the city.
But she soon left her job and started a travel business, exploring the former Soviet Union, Turkmenistan and Kyrgyzstan, and marrying a Cossack horseman in the process.
Unfortunately, it didn’t last.
A few years later, when Alexandra and her husband were struggling to make ends meet, along came Sergei Pugachev, her knight in shining armour.
The couple had first met when Alexandra had been hired to teach him English.
‘It was electric’
A framed photograph shows a glimpse of the man.
Sergei Pugachev is pictured on Tolstoy’s left, with deep-set green eyes, a trimmed moustache and beard.
Watch The Countess and the Russian Billionaire on Wednesday 8 April at 21:00 on BBC Two
Viewers in the UK can catch up later on iPlayer
The couple look relaxed and tanned on a holiday, smiling easily and dressed in white linen.
“When I met Sergei, it was electric. I fell so in love with him,” Tolstoy says. “It was so romantic, I’ve never felt such a connection with someone.”
A jet set life
Initially, Tolstoy says, life couldn’t have been better.
Within a year of meeting she had given birth to a baby and the new family were living a life of luxury between Moscow, London and Paris.
“He’d give me his credit card and I’d go shopping, I could do what I liked,” she says. “I had a private jet. I just had to pack my suitcase and go.”
The couple split their time between an array of properties; including a £12m family home in Battersea, a 200-acre estate in Hertfordshire, and a beach-front villa in the Caribbean, worth $40m.
But though the good times rolled, back in Russia, the mood had changed.
President Vladimir Putin was turning against his former oligarch allies like Sergei Pugachev.
Sergei Pugachev had amassed his vast $15bn fortune in post-communist Russia. He owned a coal mine, shipyards, designer brands and even one of Russia’s largest private banks.
He says that he was close to the Russian President – they went on holiday together “all the time” – and that after giving loans to the government he earned the nickname, “Putin’s banker”.
But Pugachev says that Putin didn’t approve of his relationship with Alexandra Tolstoy.
“Mr Putin was really surprised,” Pugachev says. “[He said] ‘Why? She’s English. So strange. There’s 140m people in Russia, it’s a crazy idea.'”
‘We can cut your son’s finger off’
In 2006, Russia passed a law giving its agents the license to kill enemies of the state abroad and it wasn’t long before Russia’s attention turned to Pugachev and his billions.
In 2008 Pugachev’s bank had hit problems and had been bailed out by the Russian State with a billion-dollar loan. But despite the bail-out, the bank went under just two years later.
Pugachev claims he had sold the bank years earlier, but Russia disagreed.
In court, Pugachev was found liable for the bank’s losses and promptly fled Russia.
Pugachev says he was threatened by Russia’s Deposit Insurance Agency (DIA), who demanded repayment for the billion dollar bank loan.
“They invited me to a restaurant. They said, ‘OK you have to pay $350m or we will kill you or your family. If you want, we can cut your son’s finger off and send it,'” Pugachev says.
The DIA denies this ever happened, but what’s certain is that Pugachev refused to pay back the money.
Over the next few years, enemies of the Russian state continued to fall.
High-profile enemies of the state
In 2012, wealthy Russian exile and whistleblower, Alexander Perepilichny, dropped dead while out jogging near his mansion in Surrey.
In 2013, Boris Berezovsky, an opponent of President Putin, was found dead at his home in Ascot.
In 2015, a leading Russian opposition politician, Boris Nemtsov, was shot dead in Moscow.
Going head to head
The Russian State was closing in on Sergei Pugachev and in 2015, used British courts to pursue him and the missing $1bn.
Pugachev was found liable for the bank’s losses – the bail-out money, it was said, had been paid into a Swiss bank account and then been moved around until all one billion dollars of it had simply vanished.
Pugachev’s assets were frozen worldwide, and his passports seized.
Having by now fled to his chateau in France, Pugachev went head to head with the Russian state and sued them for the loss of his business assets.
‘I would feel too claustrophobic and isolated’
With her partner in permanent hiding and their family being followed, Tolstoy began to feel that things were unsafe for her and her children, and by 2016 her relationship with the children’s father was under unbearable pressure.
When Pugachev asked Tolstoy to move permanently to France with their three children to live together there as a family, Tolstoy was reluctant, she just couldn’t do it.
“Sergei had one of his explosions where he physically attacked me,” she says. “He locked the children in a room, separate from me and he locked my passport and the children’s passports in his safe.”
“Something in me just snapped that weekend – I knew we weren’t safe.”
Then, in the spring of 2016, she left the chateau abruptly with the children, and they never returned.
From that moment on, she says, both she and the children have been financially cut off.
“Some people look at me and say, ‘Your life is so easy, you have lucky children who are so privileged,'” she says with tears in her eyes.
“They’re not. The most privileged upbringing is to live in a safe, secure and happy family that you know is together.”
Tolstoy says that the Russian state seized the family home and put it on the market. She says they offered her a deal to stay in the house for a year if she agreed “not to claim any maintenance from Sergei and not claim my debt.”
“I either signed the agreement or I left the house the next day,” she says.
“My worst fear is that we have no money, and that we have nowhere to live. It’s a nightmare.”
Relations between Britain and Russia worsen
By 2018, after the high-profile case of the poisoning of Sergei Skripal, a former Russian double agent in the UK, there was renewed scrutiny of a string of deaths in the UK that took place in the past two decades.
The Home Office was asked to review 14 cases, which were variously found to have been heart attacks, suicides, accidents, and deaths by natural causes.
But some some allege that they amount to a pattern of state-sponsored murder on British streets.
Relations between Britain and Russia reached a new low.
‘I’m down to my last $70 million’
Today, Pugachev lives alone in his French chateau – a decision he says he was forced to make by the Russian state – and says he is down to his last $70m.
“I love my children and I really hope in the near future my children will be happy to be with their father and everything will be alright,” he says.
While Alexandra Tolstoy spends as much time as possible at her cottage in Oxfordshire with her children, who haven’t seen their father since 2016.
“I’ll tell them he needs to sort out the situation he’s in, and ‘maybe when you’re older you can go find him yourself,'” she says.
Tolstoy has revived her travel business, leading horseback expeditions across Kyrgyzstan and makes regular trips to Russia.
“I love Russia so much,” she says. “Weirdly, my relationship with the Russian government is better than it is with Sergei.”
She has also cast off the luxuries of her previous life.
“Actually, I hate all those things now. They’re associated with a life I didn’t like,” Tolstoy says.
“I have a whole life ahead of me. I can go back to the things I love, and this is who I am.”
“Sergei always thought I’d be so desperate to be with him and his money, that I would follow him,” Tolstoy says.
“Actually, I’ve come through it. I had the strength to do it.”
Watch ‘The Countess and the Russian Billionaire’ on 8 April at 21:00, on BBC Two or catch up later on BBC iPlayer.