Netflix points out that the story is “true-ish,” which is raising a lot of questions about what’s real and what’s made for TV in this fascinating series. So, is the Hirsch Institute real—or, at least, based on a real organization? Here’s the deal.

The six-part series stars Kaitlyn Dever as main character Belle Gibson. In the series Belle is obsessed with fellow wellness influencer Milla Blake, who really does have cancer and has become famous for her alternative methods of treating the illness. But is Milla Blake based on a real person? Here's what you need to know.