Killers of the Flower Moon is a 2023 historical drama film directed by Martin Scorsese, based on the non-fiction book Killers of the Flower Moon: The Osage Murders and the Birth of the FBI by David Grann. The film stars Leonardo DiCaprio, Robert De Niro, and Lily Gladstone, and it tells the haunting and tragic true story of the Osage murders in 1920s Oklahoma.

The plot centers on the Osage Nation, a group of Native Americans who became extraordinarily wealthy after oil was discovered beneath their land. As they flourished, a wave of brutal murders targeted the Osage people, leading to the formation of an investigation by the newly formed FBI. The film explores the systemic exploitation and racial injustice faced by the Osage, with white settlers seeking to inherit their oil wealth through violent means.

DiCaprio plays Ernest Burkhart, a man who becomes involved in the conspiracy, while De Niro portrays his uncle, William Hale, a powerful figure who orchestrates the killings. Lily Gladstone plays Mollie Burkhart, an Osage woman and the wife of Ernest, who becomes a key figure in the investigation.

The film deals with themes of greed, racism, and injustice, shining a light on a dark chapter of American history that had been largely overlooked. Scorsese’s direction, combined with the powerful performances of the cast, has earned critical acclaim.