Stephen King Fans Are Losing It Over This New 89% RT Horror Movie’s Wild Cujo Comparison

When Primate arrives in theaters on January 9, 2026, it won’t simply ride the wave of creature-feature terror; it will arrive amid a full-blown Stephen King­-inspired frenzy. Directed and co-written by Johannes Roberts (known for 47 Meters Down and The Strangers: Prey at Night), the film follows a family vacation gone horribly wrong when their beloved pet chimpanzee, Ben, contracts rabies and turns into an unstoppable menace. With an early critical rating of 89% on Rotten Tomatoes, Primate has already earned buzz not just as a survival horror spectacle but as a spiritual successor to a very specific King classic: Cujo (1983). The tone of that comparison (beloved pet becomes monstrous predator) has ignited fan discussion online, with horror enthusiasts debating whether Primate upholds or undermines the legacy of King’s rabid staple.

The parallels are clear: both films center on a domesticated animal (once affectionate, now deadly) that turns its human family’s safe space into a prison. Cujo trapped a mother and son in a broken-down car; Primate isolates Lucy (Johnny Sequoyah) as she faces an unstoppable chimp. Primate openly embraces the old-school practical effects aesthetic, referencing rabies transmission and escalating violence with killer animal mechanics rather than supernatural trappings. Taken together, those elements signal a conscious nod toward the King tradition, even if Primate isn’t officially referencing Cujo. For King fans, this brings both excitement and apprehension: Will Primate honor the terror of the original or simply trade on the concept for spectacle?

What We Know About Primate So Far

The production of Primate is already steeped in genre credentials and strategic ambition. Paramount Pictures green-lit the project in July 2024 under a new horror pact with Walter Hamada’s 18hz Productions. Roberts co-wrote the film with frequent collaborator Ernest Riera; by September 16 2024, principal photography in Vancouver had begun, wrapping up on November 4 of that year. The casting includes Johnny Sequoyah as Lucy, Jessica Alexander as Hannah, and Oscar-winner Troy Kotsur in a key role. Early coverage chalked up the film to Roberts’s trademark blend of survival tension and creature-feature carnage.

Official synopsis details set the stage for something primal and immediate: A tropical getaway takes a sinister turn when Ben, the family’s adopted chimpanzee, contracts rabies and flips from friendly companion to killing machine. A mix of isolation, animal horror, and familial fracturing emerges as the film’s underlying structure. The trailer, released just a few days ago, delivers jolts of pool-party leisure that devolve into panic and blood-splattered fur. Practical effects were prioritized to keep the chimp's aggression grounded in visceral physicality rather than CGI abstraction. Early festival screenings at Fantastic Fest (September 18, 2025) delivered positive notice for the film’s tone and carnage.

Critically, Primate is positioned as a hybrid: equal parts creature horror and human drama. While the premise leans into visceral thrills, the filmmakers claim deeper layers—trust broken, the reclaimed pet myth inverted, and vacation-as-illusion explored. With an 89% approval rating on Rotten Tomatoes (as of 18 reviews), critics have praised it for lean runtime, brutal tone, and intentional escalation. Some caveats emerged around thin characterization, but the consensus emphasizes entertainment value and effective scares. In that light, Primate arrives as more than quick-bait; it aims to stake territory in the creature horror revival of the late 2020s.

One of the most intriguing aspects is how the marketing leans into the kiss-of-death comparison: the rabid animal terror template made famous by King’s Cujo. Roberts acknowledges the alignment, not as imitation but as homage. He positions Primate as a film that takes the core concept (pet becomes predator) and then stretches the ratchet further: a chimp, tropical locale, and multiple victims. For audiences who know Cujo’s legacy, that statement alone is enough to stir both dread and hope.

Cujo Is the Quintessential Killer Animal Flick

Stephen King released Cujo in 1981. The novel’s core concept—a friendly St. Bernard bitten by a rabid bat who then terrorizes a mother and son—proved both simple and savage. The 1983 film adaptation, directed by Lewis Teague, cemented the idea that horror need not be supernatural to terrify; it could flip the safe and domesticated into something monstrous. Cujo was under-the-radar at release but built a cult reputation over time, partly because King himself was famously critical of many adaptations of his work, yet praised Cujo’s film for changes he felt improved the story.

The film works because the dog is both a symbol and a monster. The home, the car, the suburban setting, everything becomes claustrophobic. The gap between pet and predator highlights a primal fear: that our trusted companion could turn. Audiences in the early 1980s responded to Cujo not just as shock horror but as a chilling up-ending of safety. Over decades, Cujo became a staple of horror retrospectives and King-canon lists: evidence that animal horror was legitimate, that rabies as metaphor still worked, and that the domestic nightmare remains unbeatable.

Beyond its plot mechanics, Cujo’s legacy lies in its subtext. It explores the unpredictability of disease, the vulnerability of home, and the idea that dread often arises from within the familiar. King’s broader mythos—haunted homes, corrupted innocence, evil disguised as ordinary—finds a distilled expression in Cujo. Its influence extends to countless horror movies that turn everyday pets, children, dogs, or settings into catalysts of terror. The looming Netflix remake announced in 2025 only underscores the film’s enduring cultural cache.

Given that backdrop, Primate’s comparison to Cujo is both apt and weighted. The horror community understands the stakes: if a film references Cujo, it must reckon with its thematic roots, not just mimic its mechanics. Cujo is more than a killer dog movie; it is a conduit for existential dread. Primate positions itself in that continuum, but adds its own mutation: a chimp, a holiday setting, bodily invasion of violence, and a survival-horror structure. The question isn’t simply “Is it like Cujo?” but “Does it channel the same dread, then extend it?” For fans of King and creature scares alike, that is the core of the excitement.

While Primate Isn't a Direct Homage to Cujo, Its Similarities Are Undeniable

At a mechanical level, the comparison is straightforward: Cujo pits a domesticated animal turned predator against isolated humans; Primate substitutes a chimpanzee in a tropical vacation scenario. But the similarities end there, and the ways Primate diverges matter as much as the homage. Whereas Cujo unfolds in near-real time, with a mother and son trapped in a car, Primate expands the battleground: multiple characters, wider set pieces, and a setting (island resort turned nightmare zone) that allows for more mobility and chaos. That increased scale is a sign of the horror genre’s evolution in the decades since Cujo made its mark.

The film’s production also signals a departure from 1980s creature-horror constraints. Johannes Roberts intentionally prioritized practical effects to bring the chimp’s rage into the physical realm. He emphasizes the importance of real creatures, “chimp movement” so visceral it triggers primal fear rather than CGI abstraction. That commitment aligns with recent horror trends where realism and tangible horror dominate. Cujo used dogs, costumes and stunt actors; Primate looks to use physicality, performance-capture or suit actors, and visceral sound design. The greater resources mean the film potentially pushes the boundary of what natural horror can achieve in a modern context.

Importantly, Primate also introduces the notion of vacation-as-trap, an inversion of paradise that Cujo implied by setting the dog attack in everyday suburbia. The tropical setting adds isolation, beauty turned lethal, and the idea of safety made exotic. That thematic flip amplifies the horror: if danger waits in the American home in Cujo, in Primate it waits in paradise abroad. The familial and pet relationship still anchors the story—emotionally grounded in trust betrayed—but the new setting and creature type mark the film as evolution rather than replication.

However, the comparison places a long shadow. Cujo is emblematic of Stephen King’s ability to exploit fear of the domestic turned monstrous. For Primate to earn its place, it must meet more than visceral shock; it must deliver thematic resonance, character investment, and lasting dread. So far, the trailer, marketing, and festival responses suggest positive signs: reviewers praise its intensity, practical effects, and unapologetic tone. But the risk remains: if it leans too heavily into spectacle without the emotional core, it may simply feel like the idea of Cujo turned louder rather than deeper. The horror community is ready for it to deliver, but also prepared to judge.

In short: Primate wears the Cujo comparison as a badge and a burden. If it succeeds, it won’t just remake a formula; it will redefine it for a new era. If it fails, it might be remembered as an ambitious imitation. Either way, the conversation around King, animals in horror and creative escalation is reignited.