Money Heist (original Spanish title: La Casa de papel) is a Spanish TV show about a bank heist.
From Wikipedia (bolding mine),
In Money Heist, a mysterious man, known as "The Professor", is planning the biggest bank heist in history. (...) The goal is to enter the Royal Mint of Spain in Madrid (...) and print €2.4 billion.
The idea of the Professor is that, since they don't rob a classic bank, the money they steal is no one's property. I would argue that it is actually everyone's money. Precisely, since we are speaking about euros, it is every European's money. Even if this money belongs to no one, there is still a large sum of money suddenly appearing "out of nowhere".
In real life, what would be the effect on the economy if the group of robbers carried its plan to its success and ended up with 2.4 billion euros?