Parker Posey Checks Into Blumhouse’s ‘Sleepover’ — Horror’s Beloved Scene-Stealer Books an October 2027 Nightmare

You’re sixteen again. Somebody’s basement. The pizza’s cold, the popcorn’s burnt, and the rental tape’s got that tracking-line wobble right at the scary part — and you wouldn’t trade this night for anything.

Turn off the lights, fiends. The sleepover just got a very interesting guest list.

Parker Posey is coming back to horror. The scene-stealer we know as Scream 3’s Jennifer Jolie and Blade: Trinity’s vampire CEO Danica Talos is set to star in Sleepover, a new horror film from Blumhouse, Atomic Monster, and Universal Pictures — headed to theaters October 8, 2027.

Quick Specs

• Film: Sleepover (2027)
• Studio: Blumhouse / Atomic Monster / Universal Pictures
• Director: Jacob Chase (Come Play)
• Script: Jacob Chase & Bryce McGuire (Baghead, Night Swim, Dolly), adapted from an original story by McGuire
• Producer: Jason Blum; EPs Jacob Chase, Bryce McGuire, Bea Sequeira
• Cast: Parker Posey (full cast TBA)
• Release: October 8, 2027 — theatrical
• Plot: Under wraps (they’re not telling, and honestly, neither are we)

What We Know

Full disclosure, up front, because that’s how we do things here: this is announcement-stage news. No trailer, no plot details, no poster — just a killer combination of names on a marquee. But look at that lineup and tell us you’re not a little excited: Jacob Chase (Come Play, a genuinely nasty little creature feature) directing from a script he co-wrote with Bryce McGuire, who has quietly become one of horror’s most dependable craftsmen (Baghead, Night Swim, Dolly). Add Jason Blum producing through the Blumhouse/Atomic Monster pipeline, and Universal putting it in theaters — this isn’t a quiet VOD drop, fiends. This is a studio planting a flag on next October.

And Parker Posey in a horror lead in 2027? She weaponized vanity and menace as Jennifer Jolie — an actress playing an actress being stalked by a killer who knew the script better than she did. She went full vampire-CEO ice queen in Blade: Trinity. The woman has range like a switchblade: funny, feral, formidable. Whatever Sleepover turns out to be — slumber-party slasher? Something weirder? (The title begs for subversion, and Blumhouse loves a bait-and-switch) — Posey is the kind of casting that makes an announcement feel like an event.

The Harper Verdict

Full disclosure, up front: there’s nothing to review yet — no footage, no stills, just names and a date. But this is the kind of package that earns anticipation on paper alone. Posey leading a Blumhouse horror with Chase and McGuire behind the camera, in theaters next October? That’s a reservation, not a gamble. 4 out of 5 skulls — Worth the scare. We’ll update this page the moment a trailer or plot details surface.

Trivia & Facts

• Parker Posey’s first horror gig was playing rising starlet Jennifer Jolie in Scream 3 (2000) — an actress cast as Gale Weathers in the Stab 3 movie-within-the-movie.
• She went full villain as vampire CEO Danica Talos in 2004’s Blade: Trinity.
• Sleepover director Jacob Chase previously directed Come Play (2020), the Larry-the-monster creature feature.
• Co-writer Bryce McGuire’s credits include Baghead, Night Swim, and Dolly — and Sleepover adapts his original story.
• The film comes from the Blumhouse / Atomic Monster / Universal pipeline — the same machine behind some of the decade’s biggest horror theatrical runs.
• Posey earned a Golden Globe nomination for The White Lotus — she’s arriving at this horror comeback at the top of her game.

Harper’s Extras

• Our Scream 3 review
• Come Play (2020) — Chase’s creature-feature calling card, if you missed it.
• Night Swim — co-writer Bryce McGuire’s pool-noir chiller, for the completists.
• The Blumhouse bench — everything the studio has lurking on the calendar between now and October 2027.

Where to Watch

Sleepover doesn’t exist to watch yet — it hits theaters October 8, 2027. Until then, the move is Posey’s horror back catalog: Scream 3 and Blade: Trinity are both streaming-rental staples. Consider it homework. The fun kind.

FAQ

When does Sleepover come out?
October 8, 2027, in theaters — via Universal Pictures.

Who’s directing Sleepover?
Jacob Chase (Come Play), from a script he co-wrote with Bryce McGuire (Baghead, Night Swim), adapted from McGuire’s original story.

What’s Sleepover about?
Plot details are under wraps — all we know is the title, the team, and the date. The title suggests a slumber party gone wrong; Blumhouse suggests it might be weirder than that.

Is Parker Posey the lead?
Per Variety, Posey will star — further casting is still under wraps.

Per Variety, via ComingSoon.net.

Parker Posey. A Blumhouse horror. October 2027. Lock the basement door, horror lovers — and keep it locked on Think Horror.