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Storyline

Other Mommy (2026) is a horror film centered on a disturbing presence that threatens the safety and peace of a family. As unsettling events begin to unfold, the characters are drawn into a terrifying mystery where fear, suspicion, and the unknown blur the line between reality and nightmare.

As the tension builds, the family must confront the darkness surrounding them and uncover the truth behind the mysterious presence before it is too late.

Note: This is a general promotional synopsis, not a verified official plot summary.

Official Storyline

Bela, an eight-year-old girl growing up in a family troubled by marital problems, encounters a sinister supernatural entity that looks and sounds exactly like her mother, Ursula. Bela calls the mysterious presence “Other Mommy,” but what initially seems like an unsettling childhood encounter soon becomes a terrifying threat.

The entity repeatedly asks Bela for permission to enter her heart. When the girl refuses, the creature begins to emerge from hiding and infiltrate the family's life. As the supernatural presence becomes more manipulative, Bela and her parents struggle to distinguish the real Ursula from the sinister impostor.

Directed by Rob Savage and produced by James Wan, Other Mommy is based on Josh Malerman's novel Incidents Around the House.

Cast and Characters

- Jessica Chastain as Ursula / Other Mommy

- Arabella Olivia Clark as Bela

- Jay Duplass as Russ (Daddo)

- Dichen Lachman as Lois

- Arian Moayed as Uncle Frank

- Karen Allen as Grandma Ruth

- Sean Kaufman

- Travis Nelson

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Watch Other Mommy (2026) online and discover the terrifying supernatural horror film starring Jessica Chastain, Jay Duplass, and Arabella Olivia Clark. Explore the storyline, cast, trailer, release date, streaming availability, and HD viewing options.

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