The true story behind the Netflix series that's gripping everyone: the tragedy of Caesium-137

Some stories are painful because they are so real that even the best screenwriter couldn't invent them. The new series everyone is talking about on Netflix brings back an episode that left an indelible mark on an entire generation in Brazil: the Caesium-137 tragedy. And believe me, this isn't fiction. It's the kind of tale that gets under your skin, literally, because that's how it all began: with a glowing powder that looked harmless but was pure death.

A blue powder that changed everything

To understand the impact, you have to travel back in time to September 1987, to Goiânia, a city that had little to do with radioactivity. Two scrap metal scavengers found an abandoned piece of equipment in a derelict radiotherapy centre. For them, it was just metal to sell. What they didn't know was that inside was caesium chloride, a radioactive salt that, when handled, released invisible but lethal particles. The most macabre part is that people, fascinated by the powder's blue glow, shared it as if it were a gift. Entire families smeared this poison on their skin, children played with it, and one six-year-old girl, after eating a sandwich with contaminated hands, received a lethal dose that destroyed her body.

The series that won't leave you indifferent

The interesting thing about this new production is that it's not just looking for shock value. I was recently chatting with some colleagues who have already seen the first episodes, and they all agree that the focus is on the victims and the monumental negligence that allowed this to happen. And note, the cast has been a talking point in itself. One of the actresses from São Paulo, who plays a doctor in the series, confessed that to prepare she had to immerse herself in some brutal research: she read testimonies, studied radiological emergency protocols, and, above all, had to connect with the panic of a community that was isolated as if it were a plague. That's what seems key to me: it's not just a story from Brazil; it's a story about how misinformation and poverty can create the perfect storm.

What almost nobody mentions

Beyond the radioactive dust, Caesium-137 left a social scar that is rarely mentioned. There was a before and after for the more than 100,000 inhabitants of Goiânia who had to be monitored. Homes were demolished, soil was removed, and survivors carried a stigma that even their own neighbours feared. Imagine being singled out for something you didn't even know was there. That's what the series seems to be portraying unflinchingly: the struggle of ordinary people against a system that didn't know how to react. In fact, one of the actors revealed he didn't even know any of this was real until he arrived on set. He came across the archives and was stunned to realise he was telling the story of real people, like little Leide das Neves, whose death shook the entire country.

• The origin: An abandoned radiotherapy device sold as scrap metal.
• The youngest victim: Leide das Neves, a girl of just 6, was the most severely affected.
• The impact: Over 200 people were directly exposed, and dozens of homes were demolished.
• The legacy: Nuclear safety regulations worldwide were drastically changed following this accident.

For those of us who grew up hearing in passing about the Goiânia accident, this series serves as an uncomfortable but necessary reminder. Because if time has shown us anything, it's that disasters involving radioactive material are not a thing of the past. Caesium-137 remains a current issue, and seeing it on screen with actors who prepared down to the smallest detail makes us ask ourselves: are we truly prepared for such an emergency?

In the end, what strikes me most is how productions like this manage to get a generation that didn't live through the event to sit and watch with wide eyes. And they do it because it's not just a lesson in nuclear physics, but a lesson in humanity. So, if you decide to sit down and watch this series, prepare for a lump in your throat. It's not easy, but stories like this deserve to be told and, above all, not forgotten.