Parijat Ghosh 
If you thought your Spotify Wrapped was scary, A24’s newest horror flick Undertone is here to make you never want to wear noise-canceling headphones again. This movie just hit theaters on March 13, 2026, and it is already ruinning everyone’s sleep schedule. Imagine a slow burn that feels like a weighted blanket, but the blanket is actually a demon named Abyzou trying to steal your soul. It is directed by Ian Tuason, who somehow convinced A24 to buy this movie for seven figures after it freaked everyone out at the Fantasia International Film Festival last year.
The Plot Is A Total Vibe Check
The movie stars Nina Kiri as Evy, a skeptical podcaster who moves back into her childhood home to care for her comatose, dying mother. She spends her nights recording The Undertone Podcast with her friend Justin, played by Adam DiMarco. Justin is the “I want to believe” guy, while Evy thinks ghosts are just bad plumbing. Things get messy when an anonymous email sends them ten audio files from a couple named Mike and Jessa. As Evy listens, she realizes the house in the recordings sounds exactly like her own. It turns out, sound waves can be cursed, and playing these tapes backwards reveals some very dark invitations for ancient entities to stop by for tea.
All The Leaks And Wild Theories
People on Reddit are currently losing their minds over the “Justin is not real” theory. Since we never actually see Justin on screen, some fans think he is a hallucination or part of the “audio world” trapped in Evy’s head. Here are the confirmed facts and juicy details from the film:
The Budget Was Tiny: They made this for only $500,000. But, it has already raked in over $18 million at the box office.
One Woman Show: Evy and her mother are the only people you ever actually see on screen. Everyone else is just a voice in her headset, which makes the isolation feel incredibly real.
Easter Eggs: If you look closely at the walls in the final scenes, they are covered in crayon drawings that suggest Evy has been possessed for much longer than the audience realizes.
This isn’t your typical jump scare fest. Tuason shot the movie in his own childhood home. That itself adds a layer of “I should probably call my therapist” energy to every frame. The sound design is the real star here. When Evy puts on her headphones, the movie switches to a noise-canceling hum that makes you feel like you are sitting right there at the table with her.
It is claustrophobic, religious, and deeply unsettling. Plus, the ending is so abrupt. You’ll be staring at the credits wondering if your own house is making that weird clicking sound. If you like your horror with a side of existential dread and Catholic guilt, Undertone is basically your soulmate.
