The Devil's Mouth (2026)
English · Horror / Thriller · 106 min · NC16
★ 6.2 (83 votes)
▸ Decent one-time watch
Released 2026-07-29
The verdict
The Devil's Mouth is a middling English film — fine for a one-time watch but unlikely to stay with you. It carries a 6.2/10 on TMDB across 83 ratings, which puts it around the middle of the pack. It runs a manageable 106 minutes. In Singapore you can stream it on Amazon Prime Video.
Genuinely divisive — critics can't settle this one. — distilled from critics' published reviews
Story
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.
Good to know
| Runtime | 106 min |
| Watch with family? | NC16 · Older kids & up |
| Genre | Horror / Thriller |
| Language | English |
| Best screen | Stream at home |
Director
Jeff Wadlow
Cast
Kathryn Newton
Sara
Lana Condor
Max
Nico Hiraga
James
Gavin Casalegno
Greg
Tommi Rose
Adrienne
Tayme Thapthimthong
Wat
Where to watch in Singapore
Amazon Prime Video
Availability as of 2026-07-30 — platforms may change over time.
Trailer
If you liked this
Dangerous Animals
English · Film
The Descent: Part 2
English · Film
The Descent
English · Film
The Last Breath
English · Film
Deep Water
English · Film
River of Blood
English · Film
Frequently asked
Is The Devil's Mouth worth watching?
Decent one-time watch. It rates 6.2/10 on audience ratings. Genuinely divisive — critics can't settle this one.
Where can I watch The Devil's Mouth?
You can stream The Devil's Mouth in Singapore on Amazon Prime Video.
When is The Devil's Mouth releasing on OTT? (OTT release date)
The Devil's Mouth is already streaming in Singapore on Amazon Prime Video — it arrived on 2026-07-29.
Is The Devil's Mouth family friendly?
The Devil's Mouth is rated NC16. Fine for older kids with guidance.
What language is The Devil's Mouth in?
The Devil's Mouth is an English film (Horror / Thriller).