The Devil’s Mouth (2026) ~ To Be Released July 29, 2026

Prime Video’s upcoming thriller “The Devil’s Mouth” plunges viewers into a claustrophobic underwater nightmare where survival is anything but guaranteed.

 

• Based on “Apex”, a 2019 Black List script by Aja Gabel & Myung Joh Wesner
• Memorable Quote: “They are not alone down there.” (Trailer tagline)
• IMDb Rating: Not yet rated

STORYLINE:

“The Devil’s Mouth” is about five college friends seeking one last adrenaline-fueled adventure before stepping into adulthood. Drawn to Thailand’s breathtaking coastal cave systems, they sign up for a guided swim through a remote labyrinth known locally as The Devil’s Mouth—a natural wonder famed for its beauty and notorious for its unforgiving terrain. What begins as a celebratory excursion quickly devolves into a nightmare when the group discovers that a freak storm has recently flooded the caves, sweeping sea creatures deep into the freshwater passages. Most of the marine life perished, but something survived—something fast, silent, and predatory.

As the friends navigate the narrow, submerged corridors, they realize they are being hunted by a massive bull shark that has adapted to the cave’s claustrophobic environment. Panic spreads as oxygen levels drop and the cave’s twisting pathways disorient them. Every wrong turn becomes a deadly encounter, and the once-tight-knit group begins to fracture under the pressure. Old conflicts resurface, trust erodes, and desperation forces them to confront not only the creature stalking them but the emotional rifts that threaten their unity.

With time running out and the cave system collapsing around them, survival demands sacrifice. Each choice carries life-or-death consequences, and the friends must decide how far they are willing to go—and what they are willing to give up—to escape the darkness. 

BIO & CAREER HIGHLIGHTS:

Kathryn Newton

She has played varied roles such as:

• Paranormal Activity 4 (2012)
• HBO’s Big Little Lies
• Netflix’s The Society.

Newton expanded into blockbuster territory with:

• Pokémon Detective Pikachu (2019)
• joined the Marvel Cinematic Universe as Cassie Lang in Ant-Man and
• the Wasp: Quantumania (2023).

TRAILER/TEASER:

Prime Video and IMDb. “The Devil’s Mouth – Official Trailer.” YouTube, 29 Jun. 2026, https://www.youtube.com/watch?v=2bp4Viru6Xc.

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