‘The Devil’s Mouth’ Trailer: Kathryn Newton & Lana Condor Enter Director Jeff Wadlow’s Deadly Cave System Thriller

Kathryn Newton, Lana Condor, Nico Hiraga, Gavin Casalegno, Tommi Rose, and Tayme Thapthimthong star in Jeff Wadlow’s survival thriller, streaming July 29.

Getaway just got a whole new meaning in “The Devil’s Mouth,” a Prime Video survival thriller that puts Jeff Wadlow back in the high-concept genre lane he has worked in for much of his career.

Wadlow has been a reliable hand for studio-friendly genre fare for years, moving from the teen slasher “Cry Wolf” and MMA drama “Never Back Down” to the comic-book sequel “Kick-Ass 2” and a run of PG-13 horror films including “Truth or Dare,” “Fantasy Island,” and “Imaginary.” “The Devil’s Mouth” keeps him in that commercial horror-thriller zone, this time trading cursed games and haunted toys for a cave system, rising panic, and something deadly moving under the water.

READ MORE: 53 Must-See Films To Watch Summer 2026

The film follows five friends who head to Thailand for one last adventure before life in the real world begins. Their destination is The Devil’s Mouth cave system, but the trip quickly becomes an underwater nightmare when they discover something hunting them in the dark. Fast, silent, and deadly, the threat turns the cave into a trap, where panic spreads, trust breaks down, and every wrong turn becomes a fight to survive.

There is also some pedigree behind the project. The film began life as “Apex,” a script by Aja Gabel and Myung Joh Wesner that appeared on the 2019 Black List before eventually becoming “The Devil’s Mouth.” Thunder Road Films producers Basil Iwanyk and Erica Lee, best known for backing the “John Wick” franchise, produce alongside Wadlow, with Amazon MGM Studios distributing the film through Prime Video.

The cast is pitched directly at the YA/thriller sweet spot. Kathryn Newton, who has moved between studio horror, comedy, and franchise fare in “Freaky,” “Lisa Frankenstein,” “Abigail,” and “Ant-Man and the Wasp: Quantumania,” stars alongside Lana Condor, still best known to many viewers from Netflix’s “To All the Boys” films. They are joined by Nico Hiraga, Gavin Casalegno, Tommi Rose, and Tayme Thapthimthong.

Here’s the official synopsis:

Support independent movie journalism to keep it alive. Sign up for The Playlist Newsletter. All the content you want and, oh, right, it’s free.

Five friends explore the Devil’s Mouth cave system in Thailand for one last adventure before life in the real world begins. But they soon discover that something is hunting them under the water…fast, silent, and deadly. In the suffocating darkness, trust erodes, panic spreads, and every wrong turn becomes a fight for survival.

“The Devil’s Mouth” streams on Prime Video July 29. Watch the trailer below.

+ posts

Related Articles

Stay Connected

221,000FansLike
18,300FollowersFollow
10,000FollowersFollow
14,400SubscribersSubscribe

NEWSLETTER

News, Reviews, Exclusive Interviews: The Best of The Playlist in your Inbox daily.

Latest Articles