A frightening trailer and an unsettling premise created anticipation, but the film’s first reviews have sparked a debate about whether shocking imagery is enough to make great horror.

Official poster imagery for Jessica Chastain's horror film Other Mommy

Entertainment • Film • Horror • International

Haven Trends covers the latest entertainment releases, audience conversations, and the stories shaping film and pop culture.

Jessica Chastain’s Other Mommy arrived in cinemas on October 9, 2026. Discover the story, critics’ reactions, and the debate around modern horror.

Why Other Mommy Is Dividing Horror Fans: Jessica Chastain’s New Film Faces a Difficult First Reception

By Haven Trends

A horror film does not need a complicated monster to frighten audiences. Sometimes, the most unsettling idea is something familiar becoming unrecognisable. That is the disturbing premise behind Other Mommy, the supernatural horror film starring Academy Award winner Jessica Chastain.

Released in cinemas on October 9, 2026, the film arrived with an attention-grabbing concept: an eight-year-old girl encounters a mysterious entity that looks and sounds like her own mother. The idea taps into a deeply unsettling fear—the possibility that someone who should make a child feel safe might no longer be who they appear to be.

Yet, despite its intriguing premise and Chastain’s dual performance, the film has faced a difficult reception from critics. Early reviews have questioned its storytelling, pacing, and reliance on jump scares. Its reception has created a timely conversation about what modern horror audiences expect from a frightening movie.

So, what is Other Mommy about, why did it attract attention, and what can its early reception tell us about the horror genre?

What Is Other Mommy About?

Other Mommy follows Bela, an eight-year-old girl whose family is experiencing difficulties. Her mother, Ursula, is increasingly unavailable, while tensions within the household create an emotionally complicated environment.

Bela begins interacting with a sinister presence that resembles her mother. The entity, known as Other Mommy, appears affectionate and familiar, but its presence becomes increasingly threatening.

The film stars Jessica Chastain in two roles: Ursula and the disturbing figure that imitates her. Jay Duplass plays Bela’s father, while Arabella Olivia Clark portrays Bela. The supporting cast includes Dichen Lachman, Arian Moayed, and Karen Allen.

Directed by Rob Savage, the film is based on Josh Malerman’s bestselling novel Incidents Around the House. It also brings together producers and filmmakers associated with contemporary horror, including James Wan and Blumhouse Productions.

According to Universal Pictures’ official announcement, the story centres on a young girl’s relationship with an entity that looks uncannily like her mother.

That premise gives the film an opportunity to explore more than supernatural scares. It also raises questions about trust, family relationships, childhood fears, and the unsettling possibility of a familiar person becoming a source of danger.

Why the Film Attracted Attention Before Its Release

Horror films frequently depend on anticipation. A disturbing image, an unusual creature, or a mysterious line of dialogue can encourage viewers to imagine something far more frightening than anything shown directly on screen.

Other Mommy benefits from a premise that is immediately understandable. Most viewers recognise the emotional importance of a parent-child relationship. Turning that relationship into the source of a supernatural threat creates a strong foundation for suspense.

The film also has several recognisable names behind it. Chastain brings an established screen presence, while Savage previously directed horror projects including Host and The Boogeyman. James Wan’s involvement further connects the production to a familiar corner of modern supernatural horror.

Its trailer helped introduce the film’s central image: a figure resembling a mother but behaving in ways that make the resemblance disturbing rather than comforting.

The result was a concept that could appeal to horror fans looking for something more psychologically unsettling than a conventional monster story.

However, a compelling trailer creates expectations that the completed film must fulfil. When viewers become interested in an idea before release, they often arrive expecting the story to develop that idea in satisfying and surprising ways.

The Reviews: Where the Film Has Struggled

The main challenge for Other Mommy has been turning its promising concept into a consistently effective cinematic experience.

In its October 10 coverage, Entertainment Weekly reported that the film had received a sharply negative response from critics. The review aggregator Rotten Tomatoes listed a critics’ score of 19% at the time of the search, although these ratings can change as additional reviews are published.

The Rotten Tomatoes listing describes the film as having effective moments but struggling to turn its scares into a satisfying whole.

Several reviews have raised concerns about the film’s storytelling and pacing. The Guardian, for example, argued that the movie’s frequent scares and disturbing imagery do not compensate for problems with coherence and psychological tension. Read the Guardian review.

These reactions do not mean that every viewer will dislike the film. Critical reviews reflect professional assessments, while audience responses can differ depending on personal taste, expectations, and tolerance for particular horror techniques.

Nevertheless, the early reception suggests that the film’s premise may have created expectations that its execution has struggled to meet.

Can Jump Scares Still Make a Horror Film Successful?

Jump scares remain one of the most recognisable techniques in horror. A sudden movement, unexpected sound, or abrupt appearance can produce an immediate physical reaction.

Used carefully, these moments can strengthen a film’s atmosphere. They can also interrupt a period of growing tension, making the eventual scare more effective.

The problem arises when a movie relies on repeated shocks without building a convincing sense of danger between them.

Psychological horror often works differently. Rather than constantly startling viewers, it allows uncertainty to grow. A quiet room, an unexplained sound, or a character behaving strangely can become frightening because the audience does not know what will happen next.

The premise of Other Mommy offers room for this kind of suspense. An entity that resembles a child’s mother could create tension through subtle differences in behaviour, conflicting memories, or uncertainty about whom the child can trust.

If the story explains too much too quickly—or repeatedly relies on sudden scares—it risks weakening the mystery that made the concept interesting in the first place.

This is one reason the film’s reception is worth watching. Its central idea raises a question that extends beyond one release: how can horror filmmakers balance immediate scares with atmosphere, character development, and an emotionally convincing story?

Jessica Chastain’s Dual Role Is a Major Talking Point

Chastain’s performance is one of the film’s most notable elements because she must portray both a mother and a supernatural figure that imitates her.

The challenge is not simply to make the two versions look different. The performance must communicate the unsettling similarities between them while suggesting that something is fundamentally wrong.

The familiar figure becomes frightening precisely because it resembles someone the audience expects to recognise. Small changes in facial expression, posture, tone, or behaviour can make that resemblance uncomfortable.

Some coverage has acknowledged Chastain’s commitment to the role even while criticising the film overall. The Daily Beast, for instance, highlighted the intensity of her performance and the film’s striking visual approach, while also identifying weaknesses in its storytelling. Read the review.

This distinction matters. A film can contain a strong performance without being entirely successful, just as a well-designed monster does not automatically make a horror story memorable.

For Chastain, the role also offers a chance to explore a different kind of screen presence by moving between an ordinary family character and a disturbing supernatural imitation.

The Story’s Deeper Themes: Motherhood, Fear, and Family

Beneath its supernatural premise, Other Mommy touches on themes that can make horror particularly effective.

The fear of losing trust

The entity’s resemblance to Bela’s mother creates uncertainty around a familiar relationship. If a person looks and sounds like someone you trust, what happens when their behaviour no longer feels safe?

This kind of uncertainty can make supernatural horror emotionally powerful because the threat is not entirely separate from everyday life. It enters a relationship that should provide reassurance.

Parental absence and emotional vulnerability

Bela’s family circumstances are important to the story. Her relationship with the entity develops against a backdrop of family difficulties, allowing the film to connect supernatural events with the child’s emotional world.

This creates the possibility of a more layered story about loneliness, attention, and a child’s need for security. Whether viewers find that exploration convincing is a separate question, and some critics have argued that the film does not develop its ideas as effectively as it could.

The familiar becoming frightening

Horror often transforms ordinary things into sources of fear: a bedroom, a mirror, a toy, or a family member’s voice.

The mother-like entity follows this tradition by making familiarity itself unsettling. Instead of introducing a completely unknown monster, the film places something threatening inside an image that should feel recognisable.

That is a strong foundation for horror, even when the finished film does not satisfy every critic.

What Other Mommy Says About the Modern Horror Market

Horror remains a useful space for filmmakers to experiment with unusual premises, visual ideas, and emotionally challenging themes. A film does not always need an enormous fictional universe or a familiar franchise to attract attention.

Other Mommy also demonstrates the difficulty of converting an attention-grabbing trailer into a satisfying feature film. Marketing can make a central image look compelling, but the full story must sustain that interest for the entire running time.

For studios, a strong concept can help a film stand out in a crowded release calendar. For audiences, however, the final judgement depends on whether the movie delivers on its promise.

The distinction between online attention and lasting audience approval is especially important in an era when trailers, reaction videos, reviews, and short clips can shape perceptions before many people see a film.

A negative critical response does not automatically mean a film will have no audience. Horror fans have different preferences, and some enjoy exaggerated scares, chaotic storytelling, or unusual visual choices. Others prefer slow-burn suspense and carefully developed characters.

The question is whether Other Mommy can find viewers who appreciate its particular approach, even if its critical reception remains unfavourable.

Should You Watch Other Mommy?

The answer depends on what you want from a horror film.

If you are interested in Jessica Chastain, supernatural doppelgängers, disturbing family stories, or unusual horror premises, Other Mommy may be worth considering.

Viewers who prioritise carefully structured storytelling, sustained psychological tension, and consistent character development may want to read a range of reviews before deciding.

The film is rated R in the United States and has a listed running time of approximately 93 minutes. It opened in theatres on October 9, 2026. Availability outside cinemas may vary by territory, so check local listings and official services for current options.

It is also worth remembering that a critics’ score is not a universal verdict. Reviews can help viewers understand a film’s strengths and weaknesses, but personal taste remains an important part of the experience.

What Happens Next for the Film?

As more viewers see Other Mommy, audience ratings, word of mouth, and its commercial performance will help build a fuller picture of its reception.

At the time of writing, it is too early to treat the initial critical response as the final word on the film’s longer-term reputation. Ratings can change, audience reactions can develop, and later discussions may focus on elements that received less attention in early reviews.

What is already clear is that the film has sparked discussion about the gap between a strong horror premise and its execution.

For filmmakers, the lesson is not that jump scares should disappear or that every horror story must be subtle. Rather, the most effective scares tend to work best when audiences care about the characters and understand what is at stake.

A frightening image may attract attention, but atmosphere, emotional investment, and storytelling are often what make a horror film stay with viewers after the credits.

Final Thoughts

Other Mommy arrived with a disturbing premise, an established lead performer, and a story built around one of horror’s most unsettling ideas: a familiar face that can no longer be trusted.

Its early reviews suggest that the finished film has not convinced many critics, particularly when it comes to narrative coherence and the balance between scares and suspense. Yet the conversation surrounding the release offers a useful reminder that a film’s marketing, concept, critical response, and audience appeal are not always the same thing.

For horror fans, the film may still provide an interesting viewing experience. For the wider entertainment industry, it is another example of the challenge of turning a promising idea into a memorable story.

What do you think makes a horror film truly frightening: unexpected jump scares, psychological tension, or a story that stays with you long after watching? Share your thoughts, and explore more entertainment stories on Haven Trends.