Parents' mistakes turned him into a millionaire, and his sister became homeless.

"Financial elite" is the title that many people give to Ivan Massow (51 years old, London). David (50 years old) only constantly curses his brother - Ivan - as a hypocritical capitalist.

One man was rich, the other was extremely poor. It was hard to imagine that these two unrelated people were actually brothers. Over the past 25 years, the huge difference in wealth and social status had driven them further and further apart.

Ivan and David were born into an ordinary family, their father was a policeman, their mother was a bank employee. They ate the same food, wore almost the same clothes and went to the same school. David was the younger brother so he was spoiled, that was the only difference between the two brothers.

Ivan still remembers that as a child, he always got up early to cut grass to earn money for his family. But David could still sleep in, then enjoy the breakfast prepared by his mother.

"I work hard and when I come home tired, I often find David hasn't done anything all day," Ivan said.

David often vandalized public property and even stole books to sell to buy cigarettes. However, his parents still protected him, which made Ivan very sad when he was young. The excessive pampering certainly had an indelible negative impact on David.

When Ivan was 21, he started his own business and made his first big money. He then sold the business to someone else for a million pounds (about 30 billion VND). He used this money as start-up capital and repeated the cycle. After 10 years, he became a millionaire.

When Ivan's business was on track, David went to college. After graduating from college, David went to work for his brother's company as an apprentice, but left after a few months. Ivan's career was growing and David was jealous of his brother.

David set a goal to get rich quickly so he tried many different jobs but failed. Over time, David began to give up on himself. He became skeptical. "What makes a rich man? Isn't it by sucking the blood of the poor?" was the man's constant thought.

The younger brother was getting older and sinking deeper and deeper into the black hole. He was unmarried, had no children, and the only way to make a living was to work at construction sites. The only place to live was a broken-down old car. No job lasted longer than a year.

By 2010, Ivan had a five-story townhouse in London, a mansion in East Sussex and a villa in Barcelona. Their lives were increasingly in two separate worlds. For 25 years, they had not seen each other. The British media favored making a documentary asking them to switch places for four days in the hope of reducing the tension between the two brothers.

When Ivan stayed in his brother's car for 4 days, he felt so terrified. There was no toilet, no shower, it was a mess like a dump. Here, David even wrote a novel based on his experiences of drug abuse.

Ivan realized that the problem that caused his brother to fall into the abyss was...freedom. Normal things in civilized society like dressing properly in public or showing up to an event on time seemed to be absent from David's mind.

Politically, his younger brother was very conservative and believed that Britain was going to collapse. David attended monthly discussions with extremist groups. Ivan found their arguments to be far from the truth. They expressed their views but did not provide clear, concrete evidence.

In short, unable to find a job, and surrounded by people who were too idle and negative, David could not help but be drawn into that cycle. The only consolation for David was the construction job he did for 10 months.

David, who had just embarked on the documentary filmmaking challenge, was upset to learn that his brother had been secretly funding him for years, either through winning the lottery, winning prizes, or receiving a higher salary than usual.

David was then taken to high society parties, to meet leaders, to charity art exhibitions, and to horse riding lessons. Surprisingly, David did better than Ivan expected. David was a good listener, intelligent, and had many creative ideas.

"David is not completely useless, he has potential but lacks a good environment to show it," said Ivan.

The younger brother stopped complaining about the government, social injustice and stopped using religious beliefs to solve practical problems. He realized that being diligent from a young age would make it a habit to do things when he grew up.

"Successful people always learn and respect each other, but I just oppose and refute unreasonably, that seems to be my hobby. This makes things worse, I always get angry and mock rich people," David shared.

David also realized that his brother had to do a lot to get to where he is today. Ivan's contributions to the community are countless, not the hypocrite that his younger brother thinks. "Nothing is successful without effort," David expressed.

After the show, they hugged each other. They both knew they were too old to be separated by that invisible wall. This documentary, titled "The Difference Between Rich and Poor", shook Britain as many people realized how brutally divided society was.