There is a quiet audacity to Undertone — a film that dares to strip horror back to its barest components and, in doing so, exposes both the potency and the peril of minimalism. Where many genre efforts lean into excess — of imagery, of narrative, of shock — Undertone instead retreats inward, crafting an experience defined less by what is shown than by what is felt.

It is, for better and worse, a film built on absence.

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Less as Language

Minimalism in cinema is often misunderstood as restraint for its own sake. In Undertone, it becomes a language — one that communicates through negative space, elongated silence, and the careful withholding of information.

The narrative itself is skeletal, almost deliberately so, allowing themes of grief, emotional suppression, and psychological entrapment to seep through the cracks rather than announce themselves outright. Characters feel less like fully articulated individuals and more like vessels for internal states — fractured, repressed, and quietly unraveling.

This approach is undeniably immersive… but also demanding.

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The Power of Sound

If Undertone has a defining strength, it lies in its sonic architecture.

Sound here is not merely accompaniment — it is the film’s primary instrument of tension. Subtle shifts in tone, the intrusion of low-frequency hums, the absence of expected auditory cues — all contribute to a sense of unease that lingers beneath the surface.

In many ways, Undertone aligns itself with traditions of psychological horror that privilege atmosphere over spectacle. It understands that fear often resides not in what we see, but in what we anticipate — and what we cannot quite place.

The result is a film that listens as much as it shows.

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The Slow Burn of Suppression

Thematically, Undertone is preoccupied with what happens when emotion is buried rather than expressed. Grief, in particular, becomes a suffocating presence — not explosive, but corrosive. It manifests in the stillness, in the hesitation, in the inability of its characters to confront what lies beneath.

This is horror as internalised pressure.

The pacing reflects this intent. Scenes linger. Moments stretch. Time itself feels elongated, mirroring the psychological stasis of its characters. For some, this will read as hypnotic — an invitation to sit within discomfort. For others, it may verge on inertia.

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Minimalism as Double-Edged Sword

And here lies the film’s central tension.

The same minimalism that gives Undertone its identity also limits its reach. The scarcity of overt scares, the deliberate narrative opacity, and the glacial pacing risk alienating viewers who seek more immediate engagement.

There are moments where the film feels on the cusp of revelation — where its restraint might give way to something more tangible — only to retreat once again into ambiguity. This can be frustrating, particularly when the emotional payoff does not fully match the investment required.

Yet to criticise Undertone for this is also to acknowledge its commitment. It refuses to compromise its vision, even when that vision narrows its audience.

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The Prognosis:

Undertone is a film that exists in the margins — of sound, of space, of emotion. It is an exercise in restraint that occasionally teeters into limitation, but never without purpose.

A haunting, slow-burning meditation on grief and suppression, where minimalism becomes both its greatest strength and its most significant constraint.

• Saul Muerte

Undertone is currently screening in cinemas nationwide