Yes, it is. The story is about a series of real - life events. The Osage people in Oklahoma became wealthy due to oil. But then many of them were mysteriously killed. The movie or book, if you're referring to either, tries to portray these tragic and real events that happened in the past.
Yes, it is. The movie delved into the real - life situation where members of the Osage tribe in Oklahoma were mysteriously murdered. Oil had been discovered on their land, and greed led to a series of heinous crimes against them. It's a story that exposes the ugly side of human nature, especially when money and power are at stake.
The book Killers of the Flower Moon is based on actual happenings. It delves into a real crime and the subsequent investigation, providing a fictionalized account of true events.