In undertone, paranormal podcast co-hosts Evy (Nina Kiri) and Justin (Adam DiMarco) fulfill the roles of skeptic and believer, respectively. Though the audio grows more and more unsettling and unexplainable with each numbered clip, Evy remains unmoved, offering a rational explanation for each incident. And after masterfully plotting the slow build of dread, the climax feels rushed and derivative of other, better horror movies. With its creative use of budget limitations and a real feel for haunting imagery, undertone stands out as a promising debut for Tuason and co. undertone premiered at the 2026 Sundance Film Festival and opens in theaters on March 13, 2026 from A24.