Rob Savage: ‘Other Mommy’ Echoes ‘Obsession’ – Chastain Stars Oct 8

Rob Savage: 'Other Mommy' Echoes 'Obsession' - Chastain Stars Oct 8

The theater went quiet the moment the trailer cut; a single breath seemed to hang in the dark. You could feel the audience split between curiosity and the urge to cover their eyes. I sat there thinking: this is where a performance either crawls under your skin or becomes an obsession.

I write about films so you don’t have to guess what’s behind the teeth. I’ve followed Rob Savage from Host to The Boogeyman, and if you’re chasing the next horror that will dominate feeds and watercooler talk, Other Mommy deserves your attention.

At late-night screenings you can see people lean in.

What Savage is saying—explicitly in an interview with Entertainment Weekly—is simple: the performance is the effect. He compared the way audiences hang on Inde Navarrette in Obsession to what Jessica Chastain does in Other Mommy, arguing that the actor can be the horror itself. Chastain, who’s no stranger to genre work from Mama to It: Chapter Two, carries a double burden here—playing both a real mother and an identical, hungry entity—so her acting becomes the film’s primary tool.

Her work in this film turns the camera into a witness, and the scene into an accusation; her presence becomes the special effect, like a mirror cracking into two reflections.

What is Other Mommy about?

Other Mommy adapts Josh Malerman’s novel Incidents Around the House. Chastain plays the child’s mother and an identical supernatural figure trying to occupy the human world. Savage directs, bringing his minimalist terror instincts from films like Dashcam and Host to a story that privileges performance over spectacle. The film hits theaters October 8.

At awards conversations you hear horror names more often than a few years ago.

People are already arguing that genre acting belongs in the same breath as prestige drama. Michael B. Jordan’s turn in Sinners and Amy Madigan’s work in Weapons have been reported as proof that voters are paying attention. Inde Navarrette’s ferocious central performance in Obsession has its own awards chatter, and Savage is leaning on that precedent—claiming that a single actor’s private war inside one body can hold a film the way Chastain holds Other Mommy.

This isn’t just awards theater; it’s a reminder to casting directors, studios, and festivals—performances in horror can be the pulse behind the headline.

How is Other Mommy like Obsession?

Both films are obsessed with identity fractures. Obsession anchors its dread in a single body split between warring selves; Savage says Other Mommy follows a similar logic but with a twist: Chastain plays two visually identical forces at odds—one human, one invasive. That comparison isn’t marketing puff; it’s a creative shorthand for the viewer: expect psychological warfare, intimate framing, and a performance that refuses to let you look away.

On social feeds you can trace where a film’s reputation begins.

Trailers for horror now explode on TikTok and Reddit before traditional critics even file reviews, and platforms like IMDb, Rotten Tomatoes, and Box Office Mojo become the scoreboard by morning. Savage’s comparison to Obsession is strategic in that landscape: it gives audiences a familiar hook to latch onto while letting Chastain’s performance do the rest. The film sits like a loaded gun waiting to go off across timelines and comment threads.

You’ll see Entertainment Weekly pieces, io9 roundups, and fan edits circulate; each of those touchpoints compounds curiosity and sets the conversation tone.

If you trust performances to carry dread, to whom will you award the credit when the lights go up—director, actor, or the film’s social momentum?