Undertone (2026)

Synopsis

A paranormal podcast host begins receiving anonymous audio recordings containing hidden messages. Listening to the tapes draws her into a terrifying supernatural presence that becomes difficult to escape.

Our Undertone review looks at a sound-driven supernatural movie with an intriguing podcast premise but scares that ultimately left us underwhelmed.

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William's Undertone Review

Undertone has a premise that sounds tailor-made for a tense, sound-driven horror film. A paranormal podcast host starts receiving strange recordings, and the material gradually becomes connected to something supernatural. I liked the idea of a horror story built around listening rather than relying entirely on what the camera shows. There is a lot of potential in making ordinary sounds feel threatening.

The movie is also clearly interested in atmosphere. It spends a lot of time with the main character in a confined setting, listening closely to recordings and trying to interpret what she hears. That approach should make the audience lean in and start questioning every noise. At times it does create an uncomfortable mood.

My problem was that the tension didn't keep building in a satisfying way. I wanted the discoveries to feel increasingly disturbing, with each recording adding something new to the mystery. Instead, too much of the film felt repetitive, and I didn't get the payoff I expected from such an interesting setup.

I appreciate movies that experiment with sound design, especially when they use it to create horror that can't be shown directly. But sound alone isn't enough if the story surrounding it doesn't give the audience a reason to remain invested. There were moments when I was listening carefully without feeling much anxiety about what was going to happen.

The performance at the center is solid, and I understand why the filmmakers chose to keep the focus so narrow. The format gives the movie an intimate quality that could work very well for a supernatural story. I just kept wishing it would push its ideas further rather than circling around the same sense of unease.

I'm not against slow-burn horror. I enjoy it when the buildup leads somewhere worth the time, and this movie had enough pieces that I thought it might. But by the end, I felt like the mystery had promised more than the story could deliver.

Undertone isn't without interesting ideas, and people who enjoy atmospheric audio horror may connect with it. For me, it was ultimately underwhelming. I wanted a movie that turned listening into a frightening experience, but too much of it felt like waiting for that experience to begin.

Amy's Undertone Review

I thought Undertone was going to be terrifying, and that's why I wasn't especially excited to watch it. The idea of somebody listening to creepy recordings and getting drawn into a supernatural situation sounded like exactly the sort of thing that would have me hiding behind my blanket. I was prepared to be scared. Instead, I ended up wondering why I wasn't feeling much of anything.

The movie spends a lot of time with a woman listening to recordings and trying to figure out what they mean. I can understand why that might be an interesting way to tell a horror story. Sounds can be scary, especially when you don't know where they're coming from. I thought the filmmakers might make me afraid of every little noise in the room.

There were some unsettling moments, but they didn't build enough for me. I'd get a little nervous about something and then the story would settle down again. I kept waiting for a bigger scare or a reason to feel really invested in what was happening. It just didn't arrive the way I expected.

The performances weren't necessarily the problem. The main character seemed believable enough, and the movie has a very specific atmosphere. It just wasn't an atmosphere I wanted to spend so much time in without anything more exciting happening. I started losing interest instead of getting frightened.

I know there are people who prefer subtle horror and enjoy trying to interpret little sounds and clues. I can appreciate that kind of movie when it gives me something to work toward. Here, I never felt like the buildup was leading to a payoff that made the whole experience worthwhile.

It wasn't an awful movie in the sense that it was badly acted or looked cheap. I could see what the filmmakers were going for, and I understand why the premise sounded promising. But I came out feeling disappointed because it was so much less frightening than I expected.

For me, Undertone should have been a movie that made me afraid to turn off the lights afterward. Instead, I was ready to move on to something else.

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