Details
- Status
- Released
- Release
- March 12, 2026 (7 months ago)
- Runtime
- 1h 34m
- Rating
- R
- Language
- English
- Origins
- Companies
- Black Fawn Films, Slaterverse Pictures, Spooky Pictures
Watch TrailerExternal Scores
Genres View all
Cast View all

Nina KiriEvy Babic

Adam DiMarcoJustin (voice)

Michèle DuquetMama

Keana BastidasJessa (voice)

Jeff YungMike (voice)

Sarah BeaudinCaller 5 - Abby (voice)

Ari MillenDr. Ram (voice)
Marisol D’AndreaNurse (voice)

Christina NottoMeditation Voice (voice)
Austin TuasonCaller 1 (voice)

Ryan TurnerDarren (voice)
View all3 more
Crew View all

Ian TuasonDirector & Writer & Executive Producer
Dan SlaterProducer

Cody CalahanProducer

Chad ArchibaldExecutive Producer

Daril FanninExecutive Producer
View all15 more
Reviews
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External reviews
Podcast horror undertone channels ancient evil through modern techThe creepy soundscapes aren't all that unsettle us in writer-director Ian Tuason's aural nightmare undertone.
'undertone' Review: A24's Latest Horror Movie Is One of the Scariest Films You’ll Ever Hearundertone, from writer-director Ian Tuason, is another terrifying A24 horror film with absolutely incredible sound design.
Undertone review: Podcast horror is a supremely spooky sonic ordealA late-night podcast recording turns into an occult nightmare in Ian Tuason's auditory A24 horror. Read the Empire review.
Undertone: Placing Sound over Matter — Original CinBy Thom Ernst
Undertone Review: This Podcast Horror Movie From A24 Is Genuinely Scary - SlashFilmA skeptical paranormal podcaster gets more than she bargained for in undertone, a genuinely scary new A24 horror movie. Here's our review.
The Year’s First Great Horror Movie Is Here“Undertone” is a thriller that knows that silence can be deadly.
Undertone Review: Heavy on Dread, Light on IdeasNote: This review was originally published as part of our 2026 Sundance coverage. The film opens in theaters on March 13. undertone (stylized all-lowercase) ...

