Apple TV's Upcoming Adaptation Of Award-Winning Novel Is Stephen King Meets The Blair Witch Project

Published Aug 15, 2026, 8:00 PM EDT

Recently, Apple TV announced it would be adapting one of Adam Nevill’s bestselling horror novels for the small screen. The series, which is titled Ascension, will center on Rose, a recently divorced mother and documentary filmmaker whose investigation into the sinister cult known as the Church of Ascension pulls her into a disturbing world of religious obsession, hidden secrets, and supernatural forces. With Outlander's Caitríona Balfe set to star and executive produce, and Academy Award winner Alfonso Cuarón involved as an executive producer and writer, Ascension has an undeniably impressive creative team behind it (via Apple TV Press).

Ascension’s source material is cause enough for the upcoming series to generate excitement, as Nevill is one of the most prolific horror writers of our time. However, it’s Apple TV’s involvement in the project, well known for its high-profile, mind-bending sci-fi adaptations, and the show's creative team that make this adaptation truly special; even more so because there haven’t been enough great horror series in the past few years.

What Apple TV's Ascension Is Based On & What The Book Is Like

Apple TV’s Ascension is based on Last Days, the acclaimed and award-winning 2012 horror novel by British author Adam Nevill, best known for The Ritual, which was adapted as a feature film in 2017. Nevill’s Last Days is the kind of horror story that becomes increasingly frightening the longer you spend inside its world. The story follows Kyle Freeman, a struggling, guerrilla-style documentary filmmaker who is offered a huge sum of money to investigate the notorious Temple of the Last Days, which became infamous after a horrific massacre in 1975.

Kyle’s documentary assignment sounds as straightforward as any project can be. However, as he and his crew travel from London to France and eventually Arizona, where they interview former cult members, they uncover disturbing evidence that the cult’s supposed supernatural beliefs may have been based on something real. Reviews of Last Days have praised Nevill’s ability to create tension by making ordinary locations feel threatening before gradually introducing the story's paranormal aspects.

The author doesn’t use gore or cheap jump scares to unravel his terrifying premise. Strange events begin to occur during the documentary shoot, interview subjects die unexpectedly, bizarre artifacts are discovered, and Kyle experiences unsettling paranormal encounters that become difficult to dismiss. One of the novel’s greatest strengths is that the reader essentially experiences the horror alongside Kyle. Just as he begins to question whether the cult’s stories were merely superstition, the evidence becomes more difficult to deny.

Ascension Could Rival Mike Flanagan's Netflix Horror Shows

Ascension could give Mike Flanagan’s Netflix horror shows some serious competition, particularly because it appears to aim for the same blend of psychological drama and supernatural terror that made series such as The Haunting of Hill House, The Haunting of Bly Manor, The Fall of the House of Usher, and Midnight Mass so compelling. While there are several other current horror filmmakers, few have the kind of influence Flanagan has had on the genre in recent years. In fact, Flanagan’s talent is the reason that Netflix’s horror titles have been so successful.

Compared to other streaming platforms, Apple TV’s horror offerings are meager, which is why a lot is riding on Ascension's success. As the streamer expands into the horror genre, its upcoming show must learn from Flanagan’s adaptations. If Apple TV allows the series to embrace the novel's darker atmosphere and gives its creatives room to develop its characters as deeply as the conspiracy, Ascension could emerge as one of the platform's biggest horror shows and perhaps one of the few recent series capable of standing alongside Flanagan's best work.