A24 Releases Trailer for Horror Film Undertone

A24 unveiled the first official trailer for the upcoming horror film Undertone on Thursday, spotlighting a chilling tale of paranormal audio recordings that ensnare a podcast host in a web of fear. Directed and written by Canadian filmmaker Ian Tuason in his feature debut, the movie stars Nina Kiri as Evy Babic, the host of a paranormal podcast who returns to her hometown to care for her ailing mother. The story unfolds as Evy receives anonymous audio files from a married couple tormented by eerie noises in their home, recordings that mirror her own circumstances and drive her toward paranoia and madness.

The trailer's release builds anticipation for Undertone's theatrical debut on March 13, 2026. Clocking in at around 85 minutes, the film emphasizes sound design to create tension, with whispers, distorted echoes, and unsettling childhood songs like "Baa, Baa, Black Sheep" enveloping the audience. In the preview, Evy and her co-host dissect the files, experimenting with reverse playback to uncover hidden messages, only to realize they have awakened a malevolent presence. An ominous voice warns Evy, "You shouldn't have called out to her. It's what she wants."