Andrew Garfield and Daisy Edgar-Jones headline a gripping seven-part dramatisation of Jon Krakauer's non-fiction novel, which has been adapted for the screen by Dustin Lance Black for director David Mackenzie. Detective Jeb Pyre (Garfield), a devout Mormon, and Detective Bill Taba (Gil Birmingham) investigate the brutal 1984 murders of Brenda Wright Lafferty (Edgar-Jones) and her baby daughter in a quiet suburb in the Salt Lake Valley, Utah. Brenda was a member of Church of Jesus Christ of Latter-day Saints (LDS) and police enquiries unearth shocking secrets about the Lafferty family and their unyielding faith. Pyre is compelled to question his own devotion to the Lord as he exposes violence and retribution in the name of religion.