"Behind the scenes. Beyond the grave" 30 May 2026 Mystery, TV Movie 84 mins
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.
Watch the official Haunted Harmony Mysteries: Key to the Castle 2026 trailer in HD below.
Tamera Mowry-Housley as Gethsemane Brown
Marco Grazzini as Griff
Risteard Cooper as Eamon
Adam Fergus as Inspector O'Reilly
Julie Lamberton as Siobhan
Frankie McCafferty as Coroner Craig
Luke Griffin as Kent Dempsey
Sarah Gallagher as Ciara Gordon
Aidan Redmond as Ed James
Cian Hoyne as Hardy
Kraig Wenman Writer
Linda-Lisa Hayter Director
Alison Crosbie Casting
Maureen Hughes Casting
Jeff Tymoschuk Music
Braden Oberson Editor
Gemma Keenan Costume Designer
Vanessa O'Connor Production Design
Ciarán Tanham Director of Photography
Edwina Forkin Producer
Canada 23 August 2026
United States 30 May 2026
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Have you watched Haunted Harmony Mysteries: Key to the Castle yet? What did you think about it?
Artwork, screen shots, trailers and other imagery is © 2026 Front Street Pictures, Muse Entertainment, Hallmark Media, Treehouse Media.