Los Angeles — Delusion’s 2026 show, Den of the Mosquito, will run at the Beckett Mansion in West Adams. That is the building where Jon Braver staged the first Delusion in 2011 and the Neil Patrick Harris co-production in 2012.
Fifteen years and roughly ten shows later, the longest-running immersive theater series in the country is going home.
The show
Den of the Mosquito is set in 1920s New Orleans. Bloodless corpses, strange abductions, supernatural sightings, and a missing mayor. In response, President Woodrow Wilson forms Anomaly, a secret organization tasked with investigating supernatural threats.
Guests play Anomaly agents. A report from a missing colleague describes an ancient relic held inside a brothel in the bayou, run by the NOLA Mafia, and ends on a broken transmission: “they fight over it— flesh and blood–feeding like mosquitos.”
Braver’s own framing calls it his “most darkly narrative interactive play yet” and “a return to the edge that made Delusion a legend.” The production promises horror, mystery, mobsters, monsters, and vampire prostitutes.
Four things are confirmed about the format:
- Extremely limited availability
- More interactivity and split paths
- A full 50-minute experience
- The return of the Play Your Part VIP option, described as coming soon
Delusion bills it as the company’s longest and most interactive play to date.
Why the venue matters
Braver has told the story of the first Delusion on our microphone more than once. He was a working stuntman who rented a mansion and ran the show for 11 nights.
“I decided to take all my context from the film world and create a living horror movie where you are a character inside of a story. So, we did it for 11 nights that year, and it just blew up. There was nothing like it. There was Delusion and then there was Sleep No More on the East Coast, and ours was the narrative adventure with branching storylines, and theirs was like an open-ended kind of world.”
Neil Patrick Harris came to that first run and called Braver mid-show, while Braver was rigging an actor for a stunt.
“I got a call and it was Neil, as I got the phone on my shoulder like this he’s like, ‘Hey man, I just came to the show. It’s so cool. We got to do something.'”
They co-produced 2012 together. Braver’s assessment of what that did: it “put the immersive theater on the map here in LA.”
That is the building Delusion is returning to. The Beckett Mansion is a historic Neoclassical manor at 2218 S. Harvard Blvd. in West Adams.
Where Delusion has been since
The venue history is most of the company’s story, and it has never been settled for long. After the mansion years, Delusion ran in an old church in 2013 and got shut down. Lies Within went into another mansion in 2014. His Crimson Queen, the vampire show, followed in 2016. The Blue Blade ran in spring 2018, which Braver later said audiences liked but that ran into venue problems.
Then nothing in 2019, and nothing in 2020.
13th Floor Entertainment Group acquired Delusion in early 2021 and brought Braver on as Director of Immersive Entertainment. Three seasons followed at the Phillips Mansion in Pomona: Reaper’s Remorse (2021), Valley of Hollows (2022), and Nocturnes & Nightmares (2023). Then a quiet 2024, and a move to the Variety Arts Theatre in downtown Los Angeles for The Harrowing of Hell in 2025.
So Den of the Mosquito is the fourth venue in six seasons. Returning to the first one is not a small gesture.
He told us he wanted to do this
When we sat down with Braver at the Phillips Mansion in 2023 for Nocturnes & Nightmares, he was openly weighing what Delusion should become. He talked about legacy, about his daughter, about the fact that the shows end and do not persist. He talked about wanting to take the fifty-plus characters and nine stories into film and television.
And he said this:
“Delusion has a special place in a lot of people’s hearts, and I don’t want to end that. The idea of bringing back some of the old shows would be a wonderful option as well too. I don’t want it to end.”
He was also candid about the economics of a show built on scarcity:
“I think if you can, you can make this a financially viable thing. Even though it’s okay, it’s still with the low numbers, it’s still hard to sustain it.”
Three years on, the answer is not a revival of an old script but a return to the old room.
What “split paths” actually means here
Branching narrative is Delusion’s founding structural claim, not a new feature. Braver has drawn the line since 2011: Delusion is the narrative adventure with branching storylines, as against Sleep No More‘s open world. He put it plainly in 2022:
“Delusion’s got a linear narrative with some branching narratives from time to time. That’s what really sets it apart, like a really rich story for people to engage in, also live sound design, creature effects, practical creature. I mean, you’re really living inside of a movie.”
The Play Your Part tagline is likewise older than the VIP tier that now carries the name. Braver on what it is supposed to mean:
“The whole tagline of play your part is a real thing, it’s not just a gimmick. So, I’ll write in moments that are pretty key to moving the story forward so people feel the agency, they feel that they’re connected to the story, and they’re part of it. The pinnacle of Delusion really is, for me, having people feel like, ‘Oh my God, I’m a part of this. I actually created this, helped to create this story.'”
As a purchasable tier, Play Your Part has previously meant being cast in the show. In 2023 the VIP option put guests into a sequence as a creature, scaring the other paying guests. Delusion has not yet said what the 2026 version includes.
Tickets: nothing on sale yet
No dates and no prices have been announced. Delusion is running an early-access signup and says ticket buyers on that list will be notified first.
That matters more here than it would for most haunts. Delusion sells out, reliably and fast, and the company is explicitly promising “extremely limited availability” this year on top of a 50-minute runtime that caps how many groups can move through a night. In past seasons the show pulsed groups every ten minutes and still ran short of tickets, with fans trading availability alerts in forums.
If you want to go, get on the list before dates drop rather than after.
The other LA immersive return this season
Delusion is not the only Los Angeles-area immersive production coming back from a long absence in 2026. Wicked Lit returns after eight years with two plays at the Chance Theater in Anaheim, running just ten performances from October 29 through November 2.
Two long-running LA immersive theater properties returning in the same season, both on deliberately scarce inventory, both at venues they had not used before or had not used in years. It is a good year for the format and a hard year to get tickets.
More HAN coverage
- Wicked Lit Returns in 2026 After Eight Years With Two Plays at Chance Theater
- Delusion Returns to Los Angeles September 15th, 2022
- 13th Floor Members Discuss LA Haunted Hayride and Delusion for 2021
- Nocturne Theatre Debuts Original Paranormal Play The Eaves
- Haunted Houses in Los Angeles 2026
- Haunted Houses in California 2026
Braver’s quotes are from HAN interviews in 2021, 2022, and 2023. Show details are from Delusion’s 2026 announcement. We will update this story when dates and ticket prices are announced.
