Under the Banner of Heaven: True Story, Cast & Where to Watch

Few true-crime adaptations spark as much debate as one that pulls back the curtain on faith in America. Under the Banner of Heaven, the 2022 FX limited series starring Andrew Garfield, takes a real 1984 double murder in Utah and asks an uncomfortable question: what happens when religious conviction tips into violence? Whether you’re drawn by the controversy, the cast, or genuine curiosity about the case, here’s what you need to know before pressing play.

Premiere Year: 2022 ·
Episodes: 7 ·
Based on Book: Jon Krakauer 2003 ·
Lead Actor: Andrew Garfield ·
Streaming Platform: Hulu

Is Under the Banner of Heaven a true story?

Yes — Under the Banner of Heaven is rooted in a real criminal case that shocked Utah and the wider United States. The FX limited series adapts Jon Krakauer’s 2003 nonfiction bestseller, which investigated the 1984 murders of Brenda Wright Lafferty and her 15-month-old daughter Erica (TIME Magazine). The show takes Krakauer’s reporting as its foundation, though like any adaptation, it compresses, dramatizes, and occasionally condenses events for television.

Book origins

Jon Krakauer, the author better known for Into the Wild and Into Thin Air, spent years investigating fundamentalist Mormonism before publishing Under the Banner of Heaven in 2003. The book interweaves the Lafferty case with a broader history of the Church of Jesus Christ of Latter-day Saints, founded by Joseph Smith in 1830 (TIME Magazine). Krakauer’s work earned praise for its depth, though LDS members criticized portions for conflating mainstream doctrine with radical offshoots.

Key events depicted

The series recreates the July 24, 1984 murders with unflinching detail. Brenda Wright Lafferty, 24, was choked with a vacuum cord and had her throat slashed in a suburban Utah home on Pioneer Day (TIME Magazine). Her daughter Erica, 15 months old, was also killed. Ron and Dan Lafferty — brothers and members of the School of the Prophets, an extreme fundamentalist sect — were behind the attack.

Factual deviations

While Krakauer’s book treats the Lafferty murders as a lens for examining religious extremism, the FX series shifts focus to Detective Jeb Pyre, a fictional character whose faith unravels as he investigates. Some characters are composites. A few dialogue scenes reflect dramatic interpretation rather than court testimony. Viewers wanting exhaustive accuracy should consult the book alongside the show.

What is the true story of the Mormon murders?

The July 24, 1984 killings weren’t random — they were allegedly commanded by God, or so Ron and Dan Lafferty believed. The brothers, excommunicated from the LDS Church for fundamentalist views including polygamy, had joined the School of the Prophets, a secretive extremist group that claimed ongoing revelation (TIME Magazine). When the church tried to discipline Ron, the brothers decided Brenda — his sister-in-law — had to die.

Brenda Lafferty killing

Brenda Wright Lafferty was 24 years old and living in a Utah suburb with her husband Allen and daughter Erica when violence reached her doorstep (TIME Magazine). The brothers choked Brenda with a vacuum cord before slashing her throat. During their trial, it emerged that Ron killed Brenda while Dan murdered Erica (TIME Magazine). Ron was sentenced to death in 1985 for killing Brenda and orchestrating the plot.

Ron and Dan Lafferty roles

Ron Lafferty served as the planner; Dan, the enforcer. Both were excommunicated from the LDS Church before the murders for pushing polygamous beliefs the mainstream church had rejected decades earlier (TIME Magazine). The brothers also plotted to kill two additional people: Chloe Low, a church leader who had counseled Ron’s ex-wife Diana during divorce proceedings, and Richard Stowe, the Highland LDS Stake president who presided over Ron’s excommunication (TIME Magazine). Those targets survived.

Fundamentalist motives

The School of the Prophets taught that God still spoke to its members, directing them toward acts the outside world would call criminal. Ron believed Brenda’s defiance of his authority — her support for her husband’s desire to leave the sect — constituted apostasy worthy of death. The mainstream LDS Church had formally abandoned polygamy generations earlier, but the Lafferty brothers operated in a doctrinal space far removed from official church teaching (Divination Hollow). This distinction is central to understanding both the murders and the controversy surrounding the series.

Is Under the Banner of Heaven worth watching?

That depends on what you’re looking for. Under the Banner of Heaven isn’t comfortable viewing — the violence is graphic, the themes are heavy, and the show doesn’t flinch from asking uncomfortable questions about faith, community, and personal conviction. For viewers who appreciate serious crime drama with strong performances, it delivers. Those expecting a simple whodunit will find a more layered, provocative experience.

Critical reception

The series holds a Metascore of 71 on Rotten Tomatoes, reflecting mixed-but-mostly-positive critical consensus (TV Guide). Critics praised the performances — especially Andrew Garfield’s portrayal of a detective whose faith fractures under investigation — and the show’s willingness to sit with moral complexity. Some reviewers felt the pacing lagged in the middle episodes, and others criticized what they perceived as an anti-religious bias in the adaptation’s framing.

Viewer pros and cons

Cast performances

Andrew Garfield plays Detective Jeb Pyre, a fictional everyman whose Mormon faith makes the case personal (FX Networks). Daisy Edgar-Jones carries Brenda Wright Lafferty’s tragic arc with emotional precision (TIME Magazine). Sam Worthington appears in supporting roles (Roku), while Gil Birmingham rounds out the cast as Detective Bill Taba (Hulu).

What did the Mormons think of Under the Banner of Heaven?

The series sparked a polarized response from Latter-day Saints. The LDS Church issued measured statements acknowledging the tragic real-life events while expressing concern that the adaptation might reinforce misconceptions about mainstream Mormonism. Many individual members engaged critically with the show, sometimes watching despite reservations.

LDS Church response

The Church of Jesus Christ of Latter-day Saints did not issue a formal boycott or protest, but spokespersons noted that mainstream Mormonism had formally rejected polygamy over a century before the 1984 murders and emphasizes that the actions of a small fundamentalist sect don’t reflect official doctrine (Divination Hollow). The church’s position is essentially: this happened, it’s tragic, but it’s not who we are.

Fundamentalist views

Members of remaining fundamentalist communities had their own concerns — though for opposite reasons. Some felt the show sensationalized aspects of their beliefs for dramatic effect. Others within smaller polygamous sects expressed unease about how their world was portrayed to a mass audience. The show occupies a complicated space: it’s critical of extremism but takes care to show that mainstream LDS members were also victims of the Lafferty brothers’ violence.

Community backlash

Online discussions among LDS members reflected a range of responses — from those who refused to watch on principle to those who engaged deeply with the show and its portrayal of faith under pressure. Fan communities on Reddit and other forums produced detailed episode analyses, some critical of the adaptation’s framing, others praising its willingness to tackle difficult material. The conversation didn’t end when the final episode aired.

Where to watch Under the Banner of Heaven?

The FX limited series is available across multiple streaming platforms. If you’re subscribed to Hulu, Disney+, or Apple TV, there’s a good chance you can start watching without additional cost. Here’s where to find it.

Streaming options

Under the Banner of Heaven streams on Hulu (FX Networks), Disney+ (Rotten Tomatoes), and Apple TV (Apple TV). Hulu serves as the primary home for FX content, while Disney+ carries it through their general entertainment library. Apple TV offers both streaming access through their subscription service and digital purchase options.

FX on Hulu

Because FX Networks produces the series, Hulu is the most direct source. New subscribers can access FX content included with a standard Hulu subscription. The platform typically makes each episode available the day after it airs on the FX cable channel, though the complete series is now available in full for binge-watching.

Purchase availability

If you don’t have an existing streaming subscription, the series is available for digital purchase through Apple TV’s iTunes store, Google Play, and Amazon Prime Video. Episodes can be bought individually or as a full season pass. Physical media (DVD or Blu-ray) has not been released for this limited series.

Timeline of Under the Banner of Heaven

The gap between the murders (1984) and both the book (2003) and series (2022) reflects how long it takes for traumatic events to become understood, let alone adapted. Krakauer’s investigation came almost two decades after the crime; the show arrived nearly four decades later.

What’s confirmed and what’s still unclear

What people are saying

Krakauer called Mormonism “the quintessential American religion” — a faith born in the contradictions of 19th-century frontier life, shaped by visions, schisms, and a stubborn insistence on revelation over tradition.

— TIME Magazine, reporting on Krakauer’s thesis in the 2003 book

The mainstream Mormon church abandoned polygamy long before the 1984 murders, but fundamentalists like the Lafferty brothers operated in a doctrinal space far removed from official church teaching.

— Divination Hollow, book review analysis

For viewers in the US who want to understand a case that reshaped debates about religious extremism in America, the show offers a dramatized starting point. Krakauer’s book provides the full investigative depth — including broader historical context about how the LDS Church developed and why schisms like the School of the Prophets emerged. The series does its best work when it shows how personal conviction becomes entangled with institutional power, and where that entanglement can lead.

Related reading: Missing Children in Nova Scotia Update – Latest on Sullivan Siblings Case · Sajal Malik Viral Video – Facts Timeline and Investigation

The Hulu series starring Andrew Garfield dramatizes the true story behind book and seriesJon Krakauer investigated in his 2003 book on Mormon extremism and the 1984 murders.

Frequently asked questions