HBO Documentary Films, World of Wonder and Ronan Production Group are in production on a documentary that follows years of reporting by award-winning journalist Ronan Farrow.

The documentary showcases a string of revelations about Sean Williams, a serial predator in Johnson City, Tenn., chronicling the decades-long evasion of justice and an ensuing scandal over claims of corruption and systemic law enforcement failures. Helmed by filmmakers Fenton Bailey and Randy Barbato, the film is produced by Ronan Farrow. Bailey and Barbato also serve as producers.

Kat Dahl, the federal prosecutor who was dismissed after investigating the case, will be featured in the documentary alongside other subjects at the center of the story.

“The details of this story at times defy belief,” Farrow said in a

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