The Devil’s Mouth (2026) Review!!

Synopsis – A group of college friends’ Thailand adventure turns deadly when they become trapped in submerged caves with a dangerous predator. As oxygen runs low, past conflicts emerge in their desperate fight for survival.

My Take – A few years from now, 2026 may well be remembered as the year of the shark. With six releases already circling and more on the horizon, the genre has barely left room to breathe before another dorsal fin cuts the surface. Yet if recent entries are to be believed, the predators have grown bored with ordinary beaches. Their hunting grounds now sprawl from a mid-Pacific crash site to the City of Lights and, in Prime Video’s latest Gen Z-led plunge, a claustrophobic cave tucked beneath Thailand’s idyllic coast.

For his latest, director Jeff Wadlow (Truth or Dare, Imaginary) wrings a sliver of novelty from the cave setting, but the blueprint remains familiar: five vacationing twenty-somethings, one bull shark in ruthless business mode, and a survival hierarchy obvious within minutes.

What elevates this outing is the script by Aja Gabel and Myung Joh Wesner, once a Black List darling, which threads in a toxic friendship. The dialogue may be pedestrian, but the simmering hostility injects a malicious rooting interest that sharpens the otherwise standard survival beats. The interpersonal friction gives the aquatic thriller more bite than its straight-to-streaming peers.

Yes, the scares are efficient rather than haunting, and the script never fully exploits its best ideas, but the result is a serviceable shark survival tale that manages to distinguish itself in a crowded tank.

Indeed, the set-up inevitably recalls 2019’s 47 Meters Down: Uncaged, with scuba-diving teens trapped in Mayan caves, yet Kathryn Newton and Lana Condor anchor this film with a friendship both sustaining and suffocating. Their dynamic builds toward a finale that delivers the nasty payoff every shark thriller requires. A cut above average for the genre, nothing more, nothing less.

The story follows a group of American college friends vacationing in Thailand during a spate of ecosystem-shifting storms. At its center are Sara (Kathryn Newton) and Max (Lana Condor), whose friendship is strained by Max’s domineering streak and Sara’s struggle to assert herself. Their debate over post-graduation plans curdles into friction after a careless mistake leaves Sara stung by jellyfish and simmering with resentment.

Leaving Max’s mild-mannered boyfriend James (Nico Hiraga) and the amorous couple Greg (Gavin Casalegno) and Adrienne (Tommi Rose) to smooth tensions as the group sets off to explore a notorious cave system ominously nicknamed “The Devil’s Mouth.” Guided by Wat (Tayme Thapthimthong), who assures them the freshwater caverns are safe, they descend into the labyrinth — only to discover that recent disturbances have driven a bull shark into the caves with them, turning their holiday into a fight for survival.

The setup is boilerplate, the kind you could sketch in your sleep, and director Wadlow’s execution is brisk enough to keep the chaos moving. He never quite drags us to the edge of our seat, but the jolts and gnarly shocks prevent us from slumping to the back of it.

What truly animates the film is how the horror strips bare the fissures in its central friendship. Max is controlling, privileged, and forever framing her choices as altruism when they’re really self-serving. Sara has long absorbed this dynamic without reckoning with the cost.

Above water, Max dictates social plans; below, she insists on steering life-or-death decisions. The script refine the leads’ motivations with a backstory that lends weight. Sara, reeling from her father’s death, nearly dropped out of college until Max stepped in as savior, surrogate sister, and overbearing parent. Sara loves her for it, but resents the permanent claim it created.

The cave system her father once called life-changing becomes Sara’s attempt at closure, though Max insists on turning it into another stage for herself. Their affection is genuine, even if Max fails to see that Sara no longer needs a “CEO of Fun,” just a friend. The controlling dynamic between Max and Sara translates directly into survival choices, and watching Sara finally resist deferring to someone who has consistently let her down gives the film a parallel arc beyond the shark.

It’s not as sharp or psychologically layered as it could be — Max’s characterization wobbles, and the script struggles with how sympathetic to make her — but it lends emotional texture rare in shark cinema. That tidbit of scientific plausibility, like bull sharks surviving in freshwater, grounds what might otherwise seem absurd.

Director Wadlow plays to his strengths: no elaborate mythology, just murky water and a labyrinth of caves. Where most shark films unfold in daylight with fins telegraphed miles away, here the predator vanishes into shadow, only to explode from nowhere and slam victims against limestone walls. The Thailand setting and cave system conjure genuine claustrophobia, and the best scenes exploit it.

Ironically, it’s the shark itself that lacks bite. Denied a point of view or distinctive presence, the CG predator lunges in predictable rhythms. The gore is oddly restrained, with the most chilling image being a washed-up sea turtle bearing a cartoonish bite mark — a strangely discreet choice for a film otherwise built on primal terror.

Performance wise, Kathryn Newton emerges as the film’s strongest asset, elevating the B-film framework with genuine spark and conviction whenever the script allows her room to breathe. Lana Condor channels the unraveling-rich-girl energy with verve, though the writing doesn’t always supply the nuance her performance reaches for.

Around them, Nico Hiraga, Gavin Casalegno, Tommi Rose, and Tayme Thapthimthong deliver serviceable turns, competent enough to keep the ensemble afloat, but never threatening to steal focus from the central dynamic. On the whole, ‘The Devil’s Mouth‘ is a satisfactory claustrophobic shark thriller whose fractured friendship drama gives it just enough bite to stay afloat.