Other Mommy
Other Mommy is presented as a psychological horror about a young girl, Bela, who forges a relationship with a sinister entity in her home that resembles her own mother.
Other Mommy: story and trailer overview
The story
Other Mommy is presented as a psychological horror about a young girl, Bela, who forges a relationship with a sinister entity in her home that resembles her own mother. The marketing leans into familial dread with the line, “There’s nothing like a mother’s love,” and the haunting question, “Can I go inside your heart?” The premise promises an intimate, unsettling conflict rooted in maternal bonds and a supernatural impersonation.
Why it works
The film’s marketing highlights established horror pedigree and source material to position it within mainstream genre fare: “From James Wan, one of the most influential architects of modern horror…” and it notes the adaptation basis: “based on the New York Times bestselling novel Incidents Around the House by Josh Malerman (Bird Box).” Casting emphasis—“Academy Award® winner Jessica Chastain… stars in a dual role as Bela’s mother and as ‘Other Mommy’”—is used to signal a central duality and emotional stakes.
What to expect
Audiences can expect a story focused on a child’s relationship with a malevolent presence that literally mirrors her mother, raising questions of identity and trust: “a terrifying trip into the darkening world of a young girl, Bela, who forms a relationship with a sinister entity in her home who looks uncannily like her own mother.” The promotional lines suggest psychological tension and familial horror rather than straight jump-scare bragging.
Our take
Other Mommy markets itself as a character-driven horror built on maternal mimicry and pedigree—promising unsettling domestic dread anchored by a dual-role performance.
Oct 9, 2026 · Theaters
Source: Universal Pictures Last checked 2026-09-11. Dates are subject to change.