If you thought a post-graduation getaway to Thailand sounded like paradise, think again. Directed by horror veteran Jeff Wadlow (Truth or Dare, Imaginary, Kick-Ass 2), this high-concept creature feature is trading haunted toys for deep-water terror.
The Plot: A Post-Grad Vacation Gone Deadly
The Devil’s Mouth follows a close-knit group of friends embarking on one final, epic adventure along Thailand’s stunning coast before facing the realities of adulthood. Looking for an unforgettable thrill, they sign up for a guided swim through a remote, breathtaking cave system known as “The Devil’s Mouth.”
But paradise quickly dissolves into a fight for survival. A freak storm from the week prior has flooded the narrow, labyrinthine waterways with ocean life. While most of the displaced sea creatures perished in the fresh water, one massive, silent apex predator adapted: a ravenous bull shark.
Trapped in the suffocating darkness with limited ways out, the friends must navigate a flooding labyrinth while being actively hunted. As panic spreads and their sense of direction vanishes, old interpersonal tensions flare, trust erodes, and survival becomes a savage psychological game.
Meet the Star-Studded Cast
Amazon MGM Studios and Lionsgate have assembled an absolute dream team of Gen-Z favorites and horror royalty to play potential shark bait:
- Kathryn Newton (Abigail, Freaky, Ant-Man and the Wasp: Quantumania) stars as Sara, a young woman trying to assert her independence before entering the real world.
- Lana Condor (To All the Boys I’ve Loved Before) plays Max, Sara’s best friend, whose bond is pushed to its absolute limits by the chaos.
- Gavin Casalegno (The Summer I Turned Pretty)
- Nico Hiraga (Booksmart)
- Tommi Rose (A Winter Romance)
- Tayme Thapthimthong (Mechanic: Resurrection)
Hollywood Pedigree Behind the Screams
This isn’t just your run-of-the-mill streaming thriller. The film’s original screenplay—penned by Aja Gabel and Myung Joh Wesner—initially made major waves under the title Apex, landing a coveted spot on Hollywood’s 2019 Black List for the best unproduced scripts in the industry.
Adding to Jeff Wadlow’s seasoned directorial hand, the film is produced by Basil Iwanyk and Erica Lee, the powerhouse producers best known for backing the high-octane John Wick franchise. Audiences can expect razor-sharp tension, slick action, and a heavy dose of underwater anxiety.
When Can You Watch It?
The film has officially locked in a PG-13 rating for violent content, bloody images, and language, making it the perfect popcorn thriller to round out the summer.
Pack your oxygen tanks: The Devil’s Mouth premieres July 29 on Prime Video.
