“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.
- Director
- Linda-Lisa Hayter
Starring
Haunted Harmony Mysteries Collection: which order to watch
- 1
7.9Haunted Harmony Mysteries: Murder in G Major
2023
- 2
7.6Haunted Harmony Mysteries: Buried at C
2025
- 3
8.5Haunted Harmony Mysteries: Key to the Castle
2026This film
- 4
Haunted Harmony Mysteries: Prelude to a Wedding
2026
Frequently asked questions
- Where can I watch Haunted Harmony Mysteries: Key to the Castle?
- Haunted Harmony Mysteries: Key to the Castle is streaming on fuboTV, Hallmark+ Amazon Channel, Hallmark+ Apple TV channel, Hallmark TV Amazon Channel. Availability is refreshed weekly.
- How long is Haunted Harmony Mysteries: Key to the Castle?
- Haunted Harmony Mysteries: Key to the Castle runs 84 minutes (1h 24m).
- Who stars in Haunted Harmony Mysteries: Key to the Castle?
- Haunted Harmony Mysteries: Key to the Castle stars Tamera Mowry-Housley, Marco Grazzini, Risteard Cooper, Adam Fergus, Julie Lamberton.