When Unhinged Pasts Are Revealed, What’s Diabolic (2026) Is Sure to Scare

Diabolic blends trauma, control, and the supernatural into a hallucinatory folk-horror trip. While the film leans heavily on its past timeline, Phillips’ visceral style shines once the weirdness bleeds into the present.

Diabolic (2025) Movie PosterStreaming on VOD (YouTube, Apple TV+)

Aussie-made films can sometimes lean on the outback, or curiosity about Indigenous culture, but Diabolic takes a different path. Though the story plays out in the proverbial outback of Utah, I couldn’t help wondering why foreign investors were more interested in helping Daniel J. Phillips make this film than backing local creators. It’s not a detail worth nitpicking since the movie was shot in the land down under, but it becomes noticeable when the landscape feels slightly wrong for its intended setting. Maybe that’s part of the hallucinatory effect Phillips is aiming for.

After Elise (Elizabeth Cullen, The Bureau of Magical Things) leaves The Church of Jesus Christ of Latter-day Saints, she thinks she’s safe. She’s moved on, but the nightmares keep coming. Elise has PTSD, and that’s the terrain the film explores more than anything else. Thankfully, her boyfriend Adam (John Kim, The Librarians) and her adoptive sister Gwen (Mia Challis, Outer Banks) are understanding. Trouble starts when they take a camping trip to get away and bring drugs along, hoping to knock down the walls Elise has built so she can finally feel whole and free from her past.

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