Other Mommy (2026) is a supernatural psychological horror film directed by Rob Savage, starring Jessica Chastain in a dual role as both a mother and the terrifying entity “Other Mommy.” Based on Josh Malerman’s novel Incidents Around the House, the movie is set to release on October 9, 2026, and promises chilling suspense with Blumhouse and Atomic Monster backing the production.

| 🎬 Title | Other Mommy (2026) |
|---|---|
| 🗓️ Release Date | October 9, 2026 |
| 🎥 Director | Rob Savage |
| ✍️ Writer | Nathan Elston |
| 📖 Based On | Incidents Around the House by Josh Malerman |
| 🧑🤝🧑 Lead Cast | Jessica Chastain, Jay Duplass, Arabella Olivia Clark, Dichen Lachman, Arian Moayed, Karen Allen |
| 🎭 Genre | Supernatural, Psychological Horror |
| 🎵 Music | Patrick Jonsson |
| 🎞️ Runtime | 93 minutes |
| 🏛️ Production | Blumhouse Productions, Atomic Monster |
| 🌍 Language | English |
Plot
The story follows Bela, an eight‑year‑old girl living in a troubled household. She begins to see a sinister entity that looks exactly like her mother. This presence, called Other Mommy, grows increasingly threatening, haunting the family and blurring the line between reality and nightmare. As Bela’s mother Ursula (Jessica Chastain) struggles to protect her daughter, the family faces escalating terror. The film explores identity, fear, and maternal protection, with chilling visuals and psychological tension.
Cast
Jessica Chastain plays Ursula, Bela’s mother, and also portrays the terrifying entity Other Mommy. Arabella Olivia Clark stars as Bela, the young girl targeted by the supernatural force. Jay Duplass appears as Russ, Bela’s father. Karen Allen plays Grandma Ruth, adding generational depth to the family’s struggle. Dichen Lachman and Arian Moayed take on supporting roles that intensify the psychological drama. Additional cast members include Sean Kaufman, Adam Silver, Rosie Anne O’Gorman, each contributing to the eerie atmosphere.
Screenshots

1. When will Other Mommy release? On October 9, 2026, worldwide.
2. Who directed the film? It is directed by Rob Savage.
3. Who plays the lead roles? Jessica Chastain, Jay Duplass, Arabella Olivia Clark, Dichen Lachman, Arian Moayed, Karen Allen.
4. What is the main storyline? A young girl is haunted by a supernatural entity that looks like her mother.
5. What makes the film unique? Jessica Chastain plays a dual role, portraying both the mother and the sinister “Other Mommy.”
Final Words
Other Mommy (2026) is set to be one of the most chilling horror films of the year. With Jessica Chastain’s dual performance, Rob Savage’s direction, and James Wan’s production, the film blends psychological tension with supernatural terror. Its eerie premise of a mother’s doppelgänger haunting her child ensures it will leave audiences unsettled long after the credits roll.





