One of the scariest horror flicks of 2025 is Undertone. The film, which won the Gold Audience Award for Best Canadian Feature, is unique for its subtle yet chilling twist on the genre. Instead of relying on unsettling faces, dark, cursed rooms, or alleys, the fear creeps in through sound. Touted as an “auditory horror,” the movie slowly injects dread through voices that are never seen, only felt.

As the film gears up for its theatrical release, writer-director Ian Tuason has revealed an eerie detail about its creation, which makes the movie feel even more unsettling.

Ahead of the theatrical release of Undertone, the film’s director, Ian Tuason, sat down with the cast for an interview with DiscussingFilm. During the conversation, Tuason recalled watching the 1990s show Mysteries of the Unknown, which featured a series of supposedly real haunted recordings and other eerie phenomena. Inspired by one particular recording, Tuason revealed that he actually took the exact dialogue from that recording and used it in the film.

“There's a line I actually took from one of those evp recordings I was watching this show about the security camera footage in a Toys r’us and there was a voice that was heard what it said was ‘I've come here with Betty I'm so cold.’ I took the line ‘I'm so cold’ I put it into the film,” he said.

He further added, “That's the last thing you say that you can understand something's wrong “Something's wrong, Justin. I'm so cold,’ but yeah so I did stole from a ghost.” 

This revelation certainly makes the auditory horror even more terrifying. Another detail about Undertone is that director Ian Tuason filmed the entire movie in his childhood home in Toronto. It was the same place where he once cared for his parents during their illness. 

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Knowing that the film is rooted in such real and personal memories only makes it more compelling and worth watching, with the release date set for this month.

After making the rounds at film festivals, Undertone is finally set to hit theaters on March 13. The film follows Evy, a podcast host covering spooky stories, who moves back to her childhood home to care for her dying mother, a premise that feels suspiciously close to director Ian Tuason’s own inspiration. 

Of course, quiet homecomings rarely stay quiet in horror films. Evy soon receives a mysterious recording that begins to mirror events from her own life, and as the tension thickens, the unsettling soundscape crafted by Tuason becomes the story’s most persistent source of dread.

So when Undertone finally arrives in theaters, audiences may find themselves listening a little more carefully than usual. After all, director Ian Tuason has built his horror not around monsters in the dark, but around something far subtler, the unsettling possibility that the scariest echoes are the ones that sound a little too much like our own lives.

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