Paradise turns deadly for five college grads hoping for a fun vacation before real life kicks in in Amazon MGM Studios’ The Devil’s Mouth. The PG-13-rated horror thriller finds the BFFs being hunted by a shark inside a freshwater cave system.
Kathryn Newton (Ready or Not 2), Lana Condor (To All the Boys I’ve Loved Before), Nico Hiraga (Sweethearts), Gavin Casalegno (The Summer I Turned Pretty), and Tommi Rose (Sweet Magnolias) star as potential victims. Aja Gabel and Myung Joh Wesner wrote the screenplay and Jeff Wadlow (Imaginary) directs.
Prime Video’s synopsis reads, “Five friends set out on one last adventure along Thailand’s stunning coast, eager for a final thrill before life in the real world begins. They sign up for a guided swim through a remote cave system known as The Devil’s Mouth, a natural wonder that’s as breathtaking as it is unforgiving.
Deep inside the labyrinth of narrow waterways, their journey takes a terrifying turn when they discover that a freak storm the week before flooded the caves with sea life. The creatures died in the fresh water, but something survived… and it’s hunting them now—fast, silent, and deadly. Every corridor they round is overflowing with anxiety, and every wrong turn becomes a deadly encounter.
As panic spreads and their sense of direction slips away, the group begins to fracture. Trust erodes, fear takes over, and survival becomes a savage game. In the suffocating darkness, every choice could be their last as they learn that to make it out alive, sacrifices must be made.”
The Devil’s Mouth premieres on Prime Video on July 29, 2026.
Wadlow, Basil Iwanyk, and Erica Lee serve as producers. Carsten H. W. Lorenz, Will Flynn, and Sam Greenberg are executive producers.
This post was last modified on June 29, 2026 3:25 pm