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Sundance Reviews Set the Tone for A24’s 'Undertone' Ahead of March Release

Critics highlight audio-first scares, with reservations about a conventional finale.

Overview

  • Ian Tuason’s feature debut centers on Evy, a podcast host caring for her dying mother who probes a set of unsettling audio files that start to mirror her fears.
  • Reviewers single out the film’s sophisticated sound design as the engine of its tension and scares.
  • The movie unfolds largely in a single location as a near one-woman showcase for Nina Kiri, with Adam DiMarco primarily heard as her co-host.
  • After a Fantasia bow and a Sundance Midnights slot, A24 has set a U.S. theatrical release for March 13, 2026.
  • Praise for the technical craft and performance is tempered by critiques that the final act leans on familiar horror tropes.