Other Mommy (2026 Film): A Supernatural Horror Film Guide
TL;DR
- Release Date: October 9, 2026
- Director: Rob Savage
- Starring: Jessica Chastain in a dual role
- Plot: Follows eight-year-old Bela and her encounters with the Other Mommy
- Production: Blumhouse Productions and Atomic Monster
- Based On: Josh Malerman's novel "Incidents Around the House"
- Genre: Supernatural horror with domestic and psychological elements
Introduction to Other Mommy
Other Mommy is a 2026 supernatural horror film directed by Rob Savage and produced by Blumhouse Productions and Atomic Monster. Distributed by Universal Pictures, the film is an adaptation of Josh Malerman's novel "Incidents Around the House." Starring Jessica Chastain in a dual role as both the mother Ursula and the sinister entity known as the Other Mommy, the film is set to release on October 9, 2026.
Official Trailer
The Plot and Story
The story of Other Mommy follows eight-year-old Bela, whose family is her entire world. Alongside her mother, father (Daddo), and grandmother, there is also the Other Mommy, a malevolent entity that has visited Bela for as long as she can remember and repeatedly asks to be let into her heart. As cracks appear in her parents' marriage, the presence of the Other Mommy intensifies, feeding on the emotional turmoil within the household.
Key Elements of the Plot
- Bela's Perspective: The story is told from Bela's child's-eye perspective, amplifying the dread as she tries to make sense of a threatening force only she can see.
- The Other Mommy: This malevolent entity is not just a ghost but a presence that seems to mirror and distort motherhood, growing in power alongside the family's emotional collapse.
- Family Dynamics: The entity appears to feed on the family's fractures, making the domestic drama inseparable from the supernatural threat.
Cast and Characters
Other Mommy features a cast led by Jessica Chastain in a dual role, supported by Jay Duplass as Bela's father, Arabella Olivia Clark as Bela, and a ensemble of familiar character actors.
Principal Cast
- Jessica Chastain: Ursula / Other Mommy
- Jay Duplass: Russ
- Arabella Olivia Clark: Bela
- Dichen Lachman: TBA
- Arian Moayed: TBA
- Karen Allen: TBA
- Sean Kaufman: TBA
The Entity: Who Is the Other Mommy?
The Other Mommy is a malevolent supernatural entity that visits Bela. It wears the shape of a mother and appears familiar yet deeply wrong, an uncanny double of maternal care. Its repeated demand is to enter Bela's heart, a disturbing request that drives the story's central fear and escalation.
Understanding the Other Mommy
- Appearance: The Other Mommy appears as a pale feminine silhouette with subtly wrong proportions and an uncanny smile.
- Behavior: It can seem friendly at times but shifts in unsettling ways, signaling its true nature.
- Connection to the Family: The entity appears to feed on the family's fractures, making the domestic drama inseparable from the supernatural threat.
Production Behind Other Mommy
Other Mommy is a collaboration between two of the biggest names in modern horror. The adaptation brings Josh Malerman's literary terror into Blumhouse's blockbuster horror pipeline.
Production Details
- Director: Rob Savage is known for his tense, innovative horror filmmaking.
- Producers: Blumhouse Productions and Atomic Monster.
- Distributor: Universal Pictures.
- Based On: Josh Malerman's novel "Incidents Around the House."
Trailer and Media
Marketing for Other Mommy has begun building anticipation ahead of its October 2026 release, with the official trailer giving audiences their first sustained look at the film's unsettling domestic horror.
Official Trailer Debut
The trailer was reported to be attached to theatrical screenings of "The Odyssey," reaching a wide audience in cinemas.
Audience Reaction
Early reports described the trailer as genuinely frightening, with accounts of jump scares startling theater audiences.
The Source Novel: Incidents Around the House
Before it was a film, Other Mommy was "Incidents Around the House," a chilling horror novel by Josh Malerman told entirely from the perspective of a child. The book established the entity, the family, and the dread that the adaptation brings to the screen.
About the Book
- Author: Josh Malerman, the bestselling horror author best known for "Bird Box."
- Point of View: The novel is told entirely from eight-year-old Bela's perspective, heightening the fear through a child's limited understanding.
- The Entity: The book establishes Other Mommy as a presence that has visited Bela nightly, asking to enter her heart.
- Family Dynamics: The story ties the supernatural threat to the emotional fractures in Bela's family, especially her parents' troubled marriage.
Release and Reviews
Other Mommy moves from a celebrated horror novel to a major studio theatrical release. Below are the key milestones in its journey to the big screen.
Release Milestones
- Novel Published: Josh Malerman's "Incidents Around the House" is published, introducing Bela and the Other Mommy to readers.
- Film Adaptation Announced: An adaptation enters development with Blumhouse and Atomic Monster producing.
- Rob Savage Directs: Rob Savage is attached to direct, with Jessica Chastain set to lead the cast in a dual role.
- Official Trailer Released: The first official trailer debuts, attached to theatrical screenings of "The Odyssey."
- Theatrical Release: Other Mommy arrives in North American theaters, distributed by Universal Pictures.
Conclusion
Other Mommy is set to be a chilling addition to the supernatural horror genre, with its gripping story, talented cast, and the eerie atmosphere that only a Blumhouse production can deliver. With its release set for October 9, 2026, fans of horror and psychological thrillers have much to look forward to.