Behind the scenes. Beyond the grave
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When a ghost hunter show comes to town, it's up to Gethsemane and Eamon to solve the unexpected murder of the host, allowing the brand-new spirit to cross-over.
It shares its release window with Backrooms, so expect the two fanbases to be reacting side by side.
Mark it: streaming from May 30, 2026.
The film comes from Front Street Pictures, Muse Entertainment and Treehouse Media. Linda-Lisa Hayter is in the director’s chair, with writing credits for Kraig Wenman. It is the latest entry in the Haunted Harmony Mysteries series, which means built-in expectations and a fanbase that will have opinions from the first frame. The finished film runs 1 hour 24 minutes.
On screen, it is Tamera Mowry-Housley, Marco Grazzini and Risteard Cooper carrying the story. Tamera Mowry-Housley plays Gethsemane Brown.
Made for a smaller screen, but the reaction still deserves the real one. Record it from the couch.
And because Haunted Harmony Mysteries: Key to the Castle goes straight to your living room, the reaction culture starts at home. Record yours the day the trailer grabs you, not the day the algorithm gets around to it.
Reaction clips for Haunted Harmony Mysteries: Key to the Castle will appear here as Reactors share them. The Reactr recorder is free for creators: watch the trailer, record on camera or voice only, and the finished clip is yours to post on your own TikTok, Reels, or Shorts channel.
Record the first reaction →Open the reaction recorder on your phone at reactr.gg/studio/haunted-harmony-mysteries-key-to-the-castle, choose camera or voice only, and press record while the trailer plays. Reactr captures your reaction and gives you a share-ready clip when the trailer ends. It is free.
No. Voice Reaction mode records your commentary with the microphone only: the camera stays off, no face is recorded, and you still get a share-ready clip for your channel.
Haunted Harmony Mysteries: Key to the Castle is scheduled to premiere on streaming on May 30, 2026. Dates can shift, so check back for updates.
Tamera Mowry-Housley, Marco Grazzini, Risteard Cooper, Adam Fergus and Julie Lamberton lead the cast, directed by Linda-Lisa Hayter.
Yes. Recording reaction clips on Reactr is free, with no paywall on the finished clip. You own your clip and can post it to TikTok, Reels, Shorts, or anywhere else. Reactr makes money from studios and sponsors, not from creators.
Watch the Haunted Harmony Mysteries: Key to the Castle trailer, hit record on camera or voice only, and the clip is yours to post.
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