Jessica Chastain Battles Her Sinister Doppelgänger in the Official Trailer for Blumhouse's 'Other Mommy'

Helmed by Rob Savage and produced by James Wan, the psychological horror thriller arrives in theaters this October.

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Summary

Universal Pictures and Blumhouse have released the debut teaser trailer for the psychological horror film 'Other Mommy'

Oscar winner Jessica Chastain takes on a terrifying dual role as a protective mother and her malevolent entity clone

Directed by Rob Savage and produced by James Wan, the feature adapts Josh Malerman's bestselling novel Incidents Around the House

Universal Pictures and Blumhouse have unveiled the official trailer for their upcoming psychological horror thriller Other Mommy.The spine-chilling teaser provides a first look at Academy Award winner Jessica Chastain taking on a dual role as both a mother and her sinister supernatural doppelgänger.

Helmed by director Rob Savage (Host, The Boogeyman) from a screenplay by Succession writer Nathan Elston, the film adapts Josh Malerman’s acclaimed novel Incidents Around the House. Produced by horror titan James Wan under the Blumhouse Atomic Monster banner, the narrative centers on eight-year-old Bela (Arabella Olivia Clark), who is targeted by a terrifying entity emerging from her bedroom closet that unnervingly mirrors her mother’s physical form.

Chastain stars alongside Jay Duplass as Bela’s father, with a supporting cast that includes Dichen Lachman, Arian Moayed, and Karen Allen. Blending domestic vulnerability with relentless supernatural dread, the footage highlights Chastain’s high-profile return to the horror genre following her performances in Mama and It Chapter Two.

Other Mommy officially arrives in theaters on October 9, 2026, via Universal Pictures.