'Monolith' review: An eerie sci-fi that's a lesson in micro-budget film-making

Creepy and effective.
 By 
Sam Haysom
 on 
A woman sits at a desk in front of a microphone, wearing a headset.
Credit: Well Go USA

It almost sounds like a challenge: Can you make a feature length movie with only one on-screen actor, one location, and a budget of less than half a million?

Written by Lucy Campbell and shot by Matt Vesely, eerie sci-fi mystery Monolith exists within these potentially tricky parameters. Almost the entire movie takes place in a modern, isolated house in the rolling Adelaide Hills, South Australia, following a disgraced journalist (Lily Sullivan) as she yarn-balls a weird global enigma for her new podcast series. The film could easily have been a dismally failed experiment, but Monolith's logistical restrictions actually help it shine, adding a claustrophobia and sense of realism that only heightens the core mystery.

What's Monolith about?

After being publicly accused of failing to check her sources for a major story, a discredited reporter retreats to her wealthy parents' country home outside of Adelaide to work on a new podcast: Beyond Belief, a deep dive into unexplained mysteries. With the pressure to find a story building, one suddenly lands in her inbox: a phone number and an ambiguous "the truth will out" message.


You May Also Like

Soon the journalist is on the trail of a strange phenomenon that appears to be happening across the globe: bizarre black bricks that turn up in people's lives, usually at a time of distress, and which contain bizarre symbols inside them that aren't from any recognisable language.

The story itself is creepy enough, but when strange occurrences start happening in the protagonist's life, it becomes clear that there's more at play.

A woman stands in front of a large window with paper taped all over it.
The perfect glass window for some conspiracy yarn-balling. Credit: Well Go USA

Monolith is a lesson in micro-budget film-making.

If it was easy to make a film for less than AUD$500,000 (£258,000 / USD$330,000), everyone would be doing it, wouldn't they? The thing is, Monolith makes it look easy. Campbell's script utilises podcast interviews and tense phone calls to add a sense of creepy realism, while Vesely adds in slow-moving cutaways to bring the interviewees' stories to life without the need for special effects.

Partway through I did wonder if the movie could have been a podcast — and it probably would have worked — but then we'd lose out on the unsettling visuals, Sullivan's brilliant lead performance, and the perfect filming location (seriously, whoever found this glass-filled modern house, surrounded by misty grey vistas, deserves an award of their own). Sullivan is on screen for almost all of Monolith's 94-minute runtime, pacing anxiously between rooms like a prisoner, obsessively editing audio files and gazing out at the hilly, gum tree-lined surroundings with the increasing fear of a woman who feels observed. Sullivan plays this role perfectly, with the layers of her character peeling back as the story progresses and her own life intersects with the mystery she's exploring.

A woman stands in front of a bathroom mirror, staring at her reflection.
Lily Sullivan is forced to confront her own past in "Monolith". Credit: Well Go USA

Is Monolith's ending satisfactory?

The tricky thing about films that ask big questions is that you inevitably end up wanting a big answer. You want to know if the conspiracy is real, or if something otherworldly exists, even if that’s not the main point of the film. Monolith falls into this category, and its ending will subsequently divide people. Without going too far into spoiler territory there's an underlying ambiguity to the movie that doesn't disappear by the end credits. But arguably the story is as much about mental illness, our pasts, and the devastating effect both these things can have on us in the present, as it is about the possibility of an extraterrestrial conspiracy. The film's ambiguous tone allows these themes to be explored simultaneously, and work in a dark harmony together.

Ultimately, Monolith is a film of unease. It builds and builds and, like the protagonist's questions about the mysterious objects and her own past, it doesn't go away.

How to watch: Monolith is in theaters from Feb 16.

Topics Reviews

Mashable Image
Sam Haysom

Sam Haysom is the Deputy UK Editor for Mashable. He covers entertainment and online culture, and writes horror fiction in his spare time.

Mashable Potato

Recommended For You
CES 2026: TCL's new X11L SQD-Mini LED TV is a flagship that could rival Samsung and LG's Micro RGB
TCL TV on TV stand in living room scene with desert outside window

'I Love Boosters' review: Keke Palmer goes wild in Boots Riley's new sci-fi satire
Keke Palmer stars in "I Love Boosters."


'Project Hail Mary' review: Ryan Gosling delights in a sci-fi buddy comedy
Ryan Gosling plays Ryland Grace in "Project Hail Mary."

'How to Get to Heaven From Belfast' trailer teases childhood friends on an eerie adventure
Three women stand in front of a hotel reception counter.

More in Entertainment
How to watch 'Wuthering Heights' at home: Margot Robbie and Jacob Elordi's controversial romance now streaming
Margot Robbie and Jacob Elordi embracing in still from "Wuthering Heights"

How to watch New York Islanders vs. Philadelphia Flyers online for free
Matthew Schaefer of the New York Islanders warms up

How to watch Mexico vs. Belgium online for free
Israel Reyes of Mexico reacts

How to watch Brazil vs. Croatia online for free
Vinicius Junior #10 of Brazil leaves

How to watch USA vs. Portugal online for free
Joe Scally #19 of the United States

Trending on Mashable
NYT Connections hints today: Clues, answers for April 3, 2026
Connections game on a smartphone

Wordle today: Answer, hints for April 3, 2026
Wordle game on a smartphone


NYT Connections hints today: Clues, answers for April 2, 2026
Connections game on a smartphone

Wordle today: Answer, hints for April 2, 2026
Wordle game on a smartphone
The biggest stories of the day delivered to your inbox.
These newsletters may contain advertising, deals, or affiliate links. By clicking Subscribe, you confirm you are 16+ and agree to our Terms of Use and Privacy Policy.
Thanks for signing up. See you at your inbox!