Şeytanın Ağzı poster
MOVIE REVIEW

The Devil's Mouth

Jeff Wadlow
2026
2026-08-07

Can Karayel • August 7, 2026

Rating

Jeff Wadlow's survival horror film The Devil's Mouth, set in Thailand's dark caves, draws attention with its claustrophobic atmosphere, but fails to rise above being an average example of the genre due to shallow character development and a predictable screenplay structure. Despite the technical achievement in its underwater sequences, the production starring Kathryn Newton and Lana Condor lacks depth.

6.5/10

The Devil's Mouth, directed by Jeff Wadlow, transplants the survival horror genre's formulas—which we've seen plenty of in recent years—into Thailand's exotic cave systems. Wadlow, who has attempted to carve out a distinctive niche in the horror genre with films like Truth or Dare and Fantasy Island, this time opts to test audiences with a more tangible threat. However, the film's biggest problem is that it repeats the genre's clichés verbatim rather than reinterpreting them.

The Devil's Mouth follows five friends as they descend into the depths of Thailand for one last adventure before graduation. This is where the screenplay's greatest weakness reveals itself: the characters are so superficially developed that it's nearly impossible to care whether they survive or not. From Kathryn Newton's leader character to Lana Condor's adventurous traveler type, everyone represents the necessary archetypes for a survival film, but none possess any real depth of personality.

Wadlow's greatest achievement in the film is his effective use of the claustrophobic atmosphere created by the cave environment. The production team, which worked in actual cave systems in Thailand to shoot the underwater scenes, has captured a striking realism, particularly in the diving sequences. The cinematographer skillfully uses the contrast between dark waters and the bright surface to create the film's strongest visual moments. However, this technical excellence isn't enough to compensate for the weak screenplay structure.

There's also an indecisive stance when it comes to the creature design. The Devil's Mouth attempts to combine the mechanical threat of shark attack films with supernatural horror elements, but this hybrid approach fails to achieve a consistent tone. Presenting the creature as neither fully realistic nor fantastical deepens the film's identity crisis.

From the cast, Kathryn Newton displays the charismatic energy she showed in productions like Freaky and Ant-Man and the Wasp: Quantumania. However, the material given is so limited that Newton's potential can't fully emerge. Lana Condor tries to shed her sweet girl image from the To All the Boys series, but the screenplay doesn't give her enough opportunity. Young actors like Nico Hiraga and Gavin Casalegno similarly remain confined within the boundaries of one-dimensional characters.

The film's sound design adopts the minimalist approach frequently used by modern horror films. While the use of silence to create tension is effective, the sudden sound bursts during overused jump scare moments are quite predictable. In terms of editing, the film experiences serious pacing problems, especially in the second half. Even the 106-minute runtime feels long due to unnecessary scenes.

One of the most interesting aspects of The Devil's Mouth is that it was made in the shadow of the real rescue operation that took place in Thailand's Tham Luang cave in 2018. The incident, which occupied the world's attention at the time, showed the entire world the dangers of cave diving. Wadlow's film could have been more sensitive in dealing with this real trauma. Although the production team took care not to damage the filming locations by collaborating with local people, the film's screenplay doesn't show sufficient respect for Thai culture.

Looking at behind-the-scenes information, we learn that 40 days were spent working in special tank systems to shoot the film's underwater scenes. The actors underwent professional diving training to deliver realistic performances. In interviews, Kathryn Newton states that this process was the most physically demanding experience of her career.

For Turkish audiences, The Devil's Mouth is a standard example of the survival horror genre that has become popular on Netflix and digital platforms in recent years. Following in the footsteps of films like The Descent, 47 Meters Down, or The Cave, the production struggles to capture the tension created by these examples. However, its young cast and exotic location choice may generate interest among younger viewers.

In conclusion, The Devil's Mouth adds another example to Jeff Wadlow's inconsistent career in the horror genre. While its visually successful moments and the technical quality of the underwater scenes are commendable, weak character development and a predictable screenplay structure prevent the film from rising above being an average survival horror example. It might serve as a time-passer for fans of the genre, but it doesn't promise an unforgettable experience.

survival horror moviescave moviesshark horrorthai moviesyoung adult horror

Frequently Asked Questions

Is Seytanin Azi (The Devil's Mouth) based on a true story?

No, Seytanin Azi is not based on a true story. It is a fictional survival horror film directed by Jeff Wadlow, set in Thailand's cave systems.

Where was Seytanin Azi filmed?

Seytanin Azi was filmed in Thailand, primarily utilizing the country's dark cave systems to create the claustrophobic atmosphere central to the survival horror story.

Is Seytanin Azi worth watching with a 6.5/10 FoxFilm score?

With a FoxFilm score of 6.5/10, Seytanin Azi is a decent watch if you enjoy survival horror, though it's considered an average entry in the genre despite its effective claustrophobic atmosphere.

Is there a sequel planned for Seytanin Azi (The Devil's Mouth)?

As of 2026, there has been no official announcement regarding a sequel to Seytanin Azi. Given its average reception, a follow-up film has not been confirmed.

Score Breakdown

Story6.0/10
Acting6.8/10
Visuals7.5/10
Music6.2/10

Details

CategoryMovie
DirectorJeff Wadlow
Year2026
Release Date2026-08-07