A24 is dominating the box office once again with the release of Undertone, an experimental horror film that premiered in U.S. theaters on March 13, 2026. Directed by Ian Tuason, the film has quickly become the talk of the industry for its groundbreaking, immersive sound design. Most characters appear only as off-screen voices, forcing the audience to rely on a haunting auditory landscape to navigate the terror.

The story follows a paranormal podcast host who finds themselves targeted by malevolent forces after discovering a series of mysterious recordings. According to reports from The Playlist and Dread Central, the film’s unique reliance on sound rather than traditional visual jump-scares has created a suffocating atmosphere that is winning over audiences. This innovative approach is paying off in a big way for the studio.

Despite a modest production budget of just $500,000, the film has exceeded all industry expectations. Undertone grossed an estimated $9.3 million during its opening weekend alone. Critics from Collider and TheWrap are praising the film as a technical achievement, marking yet another high-concept win for A24 as they continue to redefine the modern horror genre.