Haunted Harmony Mysteries: Key to the Castle
2026, English. Directed by Linda-Lisa Hayter.
Behind the scenes. Beyond the grave
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.
- Runtime
- 1h 24m
- Post-credits
- None listed
- Language
- English
- Rated
- Check local
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Where to watch Haunted Harmony Mysteries: Key to the Castle
Haunted Harmony Mysteries: Key to the Castle is streaming on fuboTV, Hallmark+, and Hallmark TV in India.
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Hallmark TV Amazon ChannelAvailability in India as of 14 November 2026. Streaming data by JustWatch.
Part of a series
Haunted Harmony Mysteries: watch order
Cast & crew
- Linda-Lisa HayterDirector
- Tamera Mowry-HousleyGethsemane Brown
- Marco GrazziniGriff
- Risteard CooperEamon
- Adam FergusInspector O'Reilly
- Julie LambertonSiobhan
- Frankie McCaffertyCoroner Craig
- Luke GriffinKent Dempsey
- Sarah GallagherCiara Gordon
- Aidan RedmondEd James
- Ryan MurrayZak
- Maria Oxley BoardmanEliza
- Conor Dan RyanRoj
Details
- Released
- 30 May 2026
- Country
- Canada, United States of America
- Written by
- Kraig Wenman
Check ratings elsewhere
News & fan talk
Watch before Haunted Harmony Mysteries: Key to the Castle
In release order. The films it follows, and anything it builds on.
After Haunted Harmony Mysteries: Key to the Castle
What comes next in the series.
If you liked Haunted Harmony Mysteries: Key to the Castle
Crossword Mysteries: Riddle Me Dead
2021 · 7.8/10
Worth the HypeRecommended by TMDB viewers
Aurora Teagarden Mysteries: Haunted By Murder
2022 · 7.0/10
Worth the HypeRecommended by TMDB viewers
Hailey Dean Mysteries: A Prescription for Murder
2019 · 7.0/10
Worth the HypeRecommended by TMDB viewers
Aurora Teagarden Mysteries: How to Con A Con
2021 · 7.2/10
Worth the HypeRecommended by TMDB viewers
Mystery 101: Playing Dead
2019 · 7.3/10
Worth the HypeRecommended by TMDB viewers
Crossword Mysteries: Proposing Murder
2019 · 7.5/10
Worth the HypeRecommended by TMDB viewers
Riddled with Deceit: A Martha's Vineyard Mystery
2020 · 7.2/10
Worth the HypeRecommended by TMDB viewers
Crossword Mysteries: Abracadaver
2020 · 8.0/10
Absolute CinemaRecommended by TMDB viewers
Annabelle Hooper and the Ghosts of Nantucket
2016 · 6.0/10
Popcorn FlickRecommended by TMDB viewers
The Night Stalker
1972 · 6.9/10
Popcorn FlickRecommended by TMDB viewers
Haunted Harmony Mysteries: Key to the Castle: quick answers
What should I watch before Haunted Harmony Mysteries: Key to the Castle?
Watch Haunted Harmony Mysteries: Murder in G Major (2023) and Haunted Harmony Mysteries: Buried at C (2025) first.
What comes after Haunted Harmony Mysteries: Key to the Castle?
Next in the series: Haunted Harmony Mysteries: Prelude to a Wedding (2026).
Is Haunted Harmony Mysteries: Key to the Castle worth watching?
Haunted Harmony Mysteries: Key to the Castle doesn’t have enough ratings for a verdict yet.
How long is Haunted Harmony Mysteries: Key to the Castle?
Haunted Harmony Mysteries: Key to the Castle runs 84 minutes (1h 24m).
Does Haunted Harmony Mysteries: Key to the Castle have a post-credits scene?
None is listed for Haunted Harmony Mysteries: Key to the Castle. Viewers tag these on TMDB, so a brand-new film may not be tagged yet.
Haunted Harmony Mysteries: Key to the Castle parents guide: is it suitable for kids?
No age rating is listed for Haunted Harmony Mysteries: Key to the Castle yet.
Which OTT platform is Haunted Harmony Mysteries: Key to the Castle on?
Haunted Harmony Mysteries: Key to the Castle is streaming on fuboTV, Hallmark+, and Hallmark TV in India. (Checked 14 November 2026.)
What movies are like Haunted Harmony Mysteries: Key to the Castle?
If you liked Haunted Harmony Mysteries: Key to the Castle, try Crossword Mysteries: Riddle Me Dead, Aurora Teagarden Mysteries: Haunted By Murder, Hailey Dean Mysteries: A Prescription for Murder.
Who directed Haunted Harmony Mysteries: Key to the Castle?
Haunted Harmony Mysteries: Key to the Castle (2026) was directed by Linda-Lisa Hayter and stars Tamera Mowry-Housley, Marco Grazzini, Risteard Cooper.