Where to watch
Haunted Harmony Mysteries: Key to the Castle isn't on any streaming service in Australia right now, but it's available in Canada, United States. Streaming rights are licensed per country.
Cast · Directed by Linda-Lisa Hayter
More from Tamera Mowry-Housley · Lead actress
More from Marco Grazzini · Co-star actor
More from Linda-Lisa Hayter · Director
More like this
Haunted Harmony Mysteries: Key to the Castle — streaming FAQ
Which OTT platform streams Haunted Harmony Mysteries: Key to the Castle?
Haunted Harmony Mysteries: Key to the Castle isn't on any streaming service in Australia yet, but it's available in Canada and United States. Streaming rights differ by country — switch your country in the header to see where.
Is Haunted Harmony Mysteries: Key to the Castle on Netflix?
No, Haunted Harmony Mysteries: Key to the Castle is not on Netflix in Australia as of September 2026.
Is Haunted Harmony Mysteries: Key to the Castle on Amazon Prime Video?
No, Haunted Harmony Mysteries: Key to the Castle isn't on Amazon Prime Video in Australia right now.
Where can I watch Haunted Harmony Mysteries: Key to the Castle for free?
Haunted Harmony Mysteries: Key to the Castle isn't streaming in Australia yet, so there's no way to watch it free at the moment.
Is there a sequel to Haunted Harmony Mysteries: Key to the Castle?
Yes — Haunted Harmony Mysteries: Key to the Castle is followed by Haunted Harmony Mysteries: Prelude to a Wedding (2026) in the Haunted Harmony Mysteries Collection.
Is there a prequel to Haunted Harmony Mysteries: Key to the Castle?
Yes — Haunted Harmony Mysteries: Buried at C (2025) comes before Haunted Harmony Mysteries: Key to the Castle in the Haunted Harmony Mysteries Collection.
Is Haunted Harmony Mysteries: Key to the Castle part of a trilogy?
No — Haunted Harmony Mysteries: Key to the Castle is part of the Haunted Harmony Mysteries Collection, which has 4 films.
How many movies are in the Haunted Harmony Mysteries Collection?
There are 4 films in the Haunted Harmony Mysteries Collection: Haunted Harmony Mysteries: Murder in G Major (2023), Haunted Harmony Mysteries: Buried at C (2025), Haunted Harmony Mysteries: Key to the Castle (2026) and Haunted Harmony Mysteries: Prelude to a Wedding (2026).
