Sofia Avellino has just found her father's mutilated body and needs the police right away. She believes her sister, Alexandra did it, and that she is still in the house, locked in the bathroom.

Both women are to go on trial at the same time. A joint trial in front of one jury.

But one of these women is lying. One of them is a murderer. Sitting in a jail cell, about to go on trial with her sister for murder, you might think that this is the last place she expected to be.

You'd be wrong.

After oil was discovered beneath their land, the Osage Indians had untold wealth. Then, one by one, they began to be killed off.

The family of an Osage woman, Mollie Burkhart, became a prime target, her relatives shot or poisoned. And, as the death toll climbed, the FBI took up the case and began to expose one of the most chilling conspiracies in American history.

Based on years of research and startling new evidence, this is a masterpiece of narrative non-fiction, as each step in the investigation reveals a series of sinister secrets and reversals. Killers of the Flower Moon is utterly compelling, but also emotionally devastating.