Trevor Henderson’s ‘Mayfair Watchers Society’ Is Becoming a Movie — The Internet’s Nightmare Factory Goes Hollywood

You found the tapes at 1:13 in the morning. Not real tapes — the digital kind, scattered across a podcast feed like someone dropped a box of evidence and ran. You press play. A stranger’s voice, calm in the way that means it is absolutely not calm, starts describing the thing it saw standing at the end of its street. By the third episode, you’re not listening anymore. You’re checking your own street.

Turn the lights down low, horror hounds. Put the phone on speaker and lean in — because these tapes just got a Hollywood budget.

The Facts

• Cineverse is adapting the hit horror-fiction podcast Mayfair Watchers Society into a feature film — a found-footage anthology spotlighting the podcast’s monsters. Announced October 15, 2026.
• Creator Trevor Henderson — the mind behind viral icons Siren Head and Cartoon Cat — is producing and joining the writing team. Hands-on, by his own word.
• The film’s creature lineup, straight from the podcast: The Needle, Creekman, Owls with Teeth, Mr. Bag, Anxious Dogs, Scissors, and The Clatter.
• The podcast isn’t going anywhere: 3M+ downloads since its October 10, 2022 debut, and Season 4 premieres soon on the Cineverse Podcast Network — the story continues on screen AND in your ears.
• Studio: Cineverse — the company that brought Terrifier 2 and Terrifier 3 to theaters.

Henderson’s Having a Year

This is the kind of year most creators dream about while staring at the ceiling at 3 a.m.

Earlier this year, Warner Bros. won a bidding war to bring Siren Head to the big screen, with Zach Cregger and Brian Duffield attached. Sony’s TriStar is adapting Cartoon Cat, with Roy Lee producing. And now the podcast Henderson created with Pacific Obadiah — presented as a collection of found tapes and audio accounts of ordinary residents meeting very un-ordinary monsters — is getting the feature treatment too. Three for three. From timeline terror to Tinseltown: that’s one hell of a glow-up.

Cineverse isn’t shy about why. Chief Motion Pictures Officer Yolanda Macias called it the year “online creators have planted their flag as the new generation of horror filmmakers and characters.” And Cineverse VP Tom Owen pointed at the receipts: Iron Lung, Backrooms, Obsession — “there hasn’t been a box office movement in years as transformational as the success seen by online creators.” Translation, fiends: the found-footage kids are eating Hollywood’s lunch, and Hollywood finally pulled up a chair.

The Best Part

Here’s the detail that matters most: this isn’t a cash-in that kills the podcast. Cineverse confirmed the Mayfair story continues in both formats — the film AND the podcast, with Season 4 on the way. The tapes keep coming. They just got bigger.

The Verdict

Full disclosure, up front, because that’s how we do things here: this is day-one announcement news. No cast. No director. No release date. No footage to judge — just a deal, a format (found-footage anthology, which fits this material like a glove), and a creator who’s promised to stay hands-on. So no skulls to hand out yet — the tapes are still being digitized. But a three-million-download podcast, a found-footage anthology of original monsters, and the guy who drew them sitting in the writer’s room? Harper’s watching this one like a hawk. Or possibly like an owl with teeth.

Trivia & Facts

• Mayfair Watchers Society was created by Trevor Henderson and Pacific Obadiah; Obadiah produces the show.
• Apple named it one of the most popular podcasts when it debuted in 2022.
• It’s been a top-50 podcast overall and the #2-ranked fiction podcast on both Apple and Spotify.
• Henderson’s Siren Head began as a viral online creation before Warner Bros. won the bidding war for the film rights earlier this year.
• Cartoon Cat, another Henderson creation, is being adapted by Sony’s TriStar Pictures with producer Roy Lee.
• The film joins the internet-horror-to-Hollywood wave: Kane Parsons’ Backrooms, Curry Barker’s Obsession, and Markiplier’s Iron Lung all made the jump to theaters.

Harper’s Extras

• The Mayfair Watchers Society podcast itself — start at episode one, lights off. It’s on every major podcast platform.
• Our review of Backrooms — the found-footage phenomenon that proved internet horror can own a theater.
• Our review of Obsession — Curry Barker’s entry in the online-creators-take-Hollywood wave.
• Our review of Iron Lung — Markiplier’s submarine nightmare. Same movement, same receipts.

Where to Watch

The movie: no release date yet — we’ll update this post the second Cineverse names one. The podcast: streaming now on Apple Podcasts, Spotify, and the Cineverse Podcast Network (Bloody FM). Season 4 is on the way.

FAQ

What is Mayfair Watchers Society?
A horror-fiction podcast created by Trevor Henderson and Pacific Obadiah, presented as found tapes and audio accounts of residents encountering Henderson’s monsters. 3M+ downloads since October 2022.

Who is Trevor Henderson?
The artist behind viral horror icons Siren Head and Cartoon Cat. 2026 has been his year: Siren Head (Warner Bros.), Cartoon Cat (TriStar), and now Mayfair (Cineverse).

When does the Mayfair Watchers Society movie come out?
No release date yet — it was just announced. We’ll update this post when there’s a date, a trailer, or a cast.

Is the podcast ending because of the movie?
No — Cineverse confirmed the story continues in both formats, and Season 4 premieres soon.

Where can I listen to the podcast?
Apple Podcasts, Spotify, and the Cineverse Podcast Network (Bloody FM).

Until the next nightmare, fiends.

Facts via Cineverse’s official announcement and Bloody Disgusting (first reported by Variety).