I got an early screener of the new horror film Diabolic, and I went in with a very specific reason for being excited: religious horror tends to hook me every time. Give me cult themes, faith-based dread, buried trauma, and something spiritually off the rails — I’m seated.
Good news: Diabolic delivers where it counts. I’m giving it 3 out of 5 stars and I’ll tell you exactly why.
The Setup and Story
The film centers on a young woman dealing with blackout episodes and missing memories from her childhood. She has no clear picture of how she grew up, and that gap drives the mystery forward. Her psychiatrist recommends she return to the church connected to her past and face it head-on through a form of exposure therapy, with the promise of a possible cure.
The church environment carries strong cult-style energy, drawing from FLDS-type elements, which adds immediate tension and curiosity. Two people connected to that church step in to guide her through the process. She brings along her partner and a friend, and that decision sets the table for everything that follows.
What impressed me most: there is a real story here. The plot tracks. Motivations make sense. Events connect. Nothing feels like random spooky filler tossed in to pad runtime. I walked in expecting something I’d have to push through. Instead, I found a narrative that holds together and keeps you engaged.
Cinematography and Creative Choices
The cinematography looks great — and not in a throwaway way. There are creative shooting decisions and visual storytelling moments that elevate the material. Camera placement, framing, and how certain scenes unfold show intention. Someone behind the lens cared about how this story lands, and it shows up on screen.
There are sequences where the visual approach adds tension without a word being spoken. That always scores points with me.
Performances
Elizabeth Cullen, who plays the lead, brings real weight to the role. Her performance keeps the emotional center grounded even when the film moves into more unsettling territory. I never felt pulled out by anything cheesy or overplayed, which is a minor miracle in this sub-genre.
The supporting cast holds their own and supports the arc well.
Dialogue and Tone
The dialogue isn’t phenomenal. It works. It gets the job done. At times it sounds a little stiff, still it fits the characters and the world enough that it didn’t become a distraction. The strength of the story and structure carries those weaker spots without trouble.
The Horror Factor (And the Patience Test)
Horror fans need to know this going in: the film takes its time.
The early stretch leans heavily into story, mystery, and atmosphere. You get uneasy moments and scattered scares, although the full horror intensity ramps up in the final 10–15 minutes. When it hits, it hits hard. The buildup feels intentional, and the payoff lands with more impact because of that runway.
If you want nonstop chaos from minute five, you may feel restless early on. If you like a slow burn with a loaded finish, you’ll appreciate the design.
Final Take
Diabolic is a solid religious horror entry with strong story structure, thoughtful visual choices, and a lead performance that anchors the film. The scares concentrate toward the end, the dialogue has some rough edges, and the payoff makes the ride worthwhile.
3 out of 5 stars.
I’d absolutely show up for a sequel if they make one.
If religious or cult-themed horror sits in your wheelhouse, this one deserves a look in theaters this weekend. Bring your patience and your nerves. The last act collects the debt.
