Haunted Harmony Mysteries: Key to the Castle
"Behind the scenes. Beyond the grave"
Where to Watch
fuboTV 
Hallmark+ Amazon Channel 
Hallmark+ Apple TV channel 
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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.
Mystery TV Movie
Tamera Mowry-Housley
Gethsemane Brown
Marco Grazzini
Griff
Risteard Cooper
Eamon
Adam Fergus
Inspector O'Reilly
Julie Lamberton
Siobhan
Frankie McCafferty
Coroner Craig
Luke Griffin
Kent Dempsey
Sarah Gallagher
Ciara Gordon
Aidan Redmond
Ed James
Ryan Murray
Zak
Maria Oxley Boardman
Eliza
Conor Dan Ryan
Roj
Haunted Harmony Mysteries Collection
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Release Schedule
Theatrical May 30, 2026
Digital —
Physical —
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