Tamera Mowry-Housley Reveals Fourth Haunted Harmony Movie in Ireland

Hallmark fans, it’s time to dust off those sleuthing skills. Tamera Mowry-Housley just dropped some news that’s sure to thrill every mystery lover out there.

While promoting her latest film in the Haunted Harmony Mysteries series, she revealed she’s already filming not one, but two new installments in Ireland—before the next two even air. That’s right: the Hallmark favorite is back as Gethsemane Brown, the musician-turned-amateur detective, in a franchise that’s quickly turning into one of the network’s buzziest mysteries.

Ireland’s misty hills, ghostly legends, and a tangled web of intrigue set the stage. Mowry-Housley’s next adventure promises suspense, charm, and a little bit of heart—just what fans crave.

Tamera Mowry-Housley’s Big Reveal: Two More Mysteries Already in the Works

During a live appearance on Good Day Sacramento on October 9, 2025, Tamera Mowry-Housley sat down with co-star Marco Grazzini to promote Haunted Harmony Mysteries: Buried at Sea, premiering October 12 on Hallmark Channel. But then came the real surprise: she casually let slip that filming for the fourth installment is already underway—before the second and third movies have even aired.

Filming kicked off in early 2025, with the cast and crew heading back to Ireland to soak up the magic of Dublin and the Wicklow countryside. Ireland’s Screen Crew and Services Database notes production ran from February 4 to April 11, giving them more than two months to shoot two full-length films.

That’s a huge leap from Hallmark’s usual 15-day production schedule. Clearly, the network’s betting big on Haunted Harmony.

Why Ireland Is the Perfect Backdrop for Hallmark’s Spookiest Mystery Yet

The Irish setting has pretty much become a character itself in the Haunted Harmony Mysteries. Rolling green hills, ancient manors, and moody skies—every frame just oozes atmosphere.

The first film, Murder in G Major, introduced us to Gethsemane Brown, a former orchestra conductor who moves to Ireland to teach at a fancy boarding school. Instead of a peaceful new life, she gets tangled up in a supernatural whodunit involving the ghost of a murdered musician, Eamon, played by Risteard Cooper.

Now, the stakes—and the spirits—are only getting bigger. Mowry-Housley teased that Buried at Sea will feature not just one ghostly presence, but another otherworldly visitor, setting up what she called a “love triangle from beyond the grave.”

There’s also a visit from Gethsemane’s brother and, of course, another murder to untangle. Sounds like predictability is off the table.

Hallmark’s Mystery Renaissance: Why “Haunted Harmony” Hits the Right Note

Hallmark’s always been known for its cozy Christmas movies, but lately, the network’s been expanding into mysteries with more depth. Haunted Harmony Mysteries really shows off this shift.

The series blends supernatural intrigue with real emotion, and gives us a heroine who’s strong and sensitive. Mowry-Housley has said she welcomed the chance to break out of the holiday movie mold. After years of festive romances, she’s enjoying the challenge of a character who faces both emotional and paranormal puzzles.

“I wanted to add a bit more drama into the mix,” she shared. Judging by the early buzz, fans are loving it.

The Franchise’s Future: Four Films and Counting

With Buried at Sea set to premiere in October and a third film waiting in the wings, news of a fourth movie already filming has fans buzzing. Word is, both the third and fourth installments will likely debut in 2026, alongside other delayed mystery projects like True Justice and Curious Caterer.

Spreading out the releases could actually be a smart move. It keeps anticipation high and makes sure each film gets its time in the spotlight. Especially since 2025 saw so few new mysteries, viewers are hungry for something fresh to unravel.

Behind the Scenes: A Production Unlike Any Other

One thing that stands out? The unusually long filming schedule. Shooting two movies over more than two months is pretty much unheard of for Hallmark.

Usually, these films are shot in just over two weeks, but the Haunted Harmony team clearly wanted to give this story the cinematic treatment. The extra time meant more elaborate sets, richer cinematography, and deeper character development.

Ireland’s Wicklow region, about 30 miles south of Dublin, was the perfect backdrop—coastal cliffs, old architecture, and landscapes that are somehow both romantic and eerie. All of it adds up to a tone that’s hard to resist.

Meet the Cast Bringing the Mystery to Life

Alongside Mowry-Housley, you’ll see Marco Grazzini back as Griff, Gethsemane’s charming teaching colleague, and Risteard Cooper as Eamon, the ghostly musician who helps her solve crimes from the other side. Adam Fergus returns as Inspector O’Reilly, the no-nonsense local detective who’s often torn between being impressed and exasperated by Gethsemane’s sleuthing.

The cast’s chemistry is a big part of what makes this franchise work. Fans can’t get enough of the dynamic between Mowry-Housley and Grazzini—their banter and rapport bring some needed warmth to these chilling mysteries.

And Cooper’s Eamon? He brings real heart to the series—a ghost with unfinished business and a dry sense of humor.

What to Expect from “Buried at Sea”

The next film promises to up the emotional stakes while serving up the kind of twisty, music-filled mystery that made the first one so fun. This time, Gethsemane’s drawn into another murder case, one that tests her loyalty, her intuition, and her connection to the spirit world.

Mowry-Housley says Buried at Sea will dig deeper into Gethsemane’s character, especially her growing confidence as a detective and her complicated feelings for the ghosts in her life.

With a new ghostly visitor and a family member dropping by, the story weaves together love, loss, and redemption—all set against the haunting Irish coast.

Why Fans Are Eagerly Awaiting This Premiere

Hallmark’s audience has made it clear: they want mysteries that break the mold. Haunted Harmony Mysteries delivers—supernatural twists, emotional depth, and a real sense of place.

The Irish setting adds so much authenticity, and the music thread ties everything together. Each note kind of echoes the show’s message about finding harmony between worlds.

Fans are also excited to see Mowry-Housley take on a role with more creative challenge. After decades of comedies and romantic dramas, she’s showing off her range with a character who’s both cerebral and compassionate. It’s a performance that really lands for longtime viewers who’ve followed her career.

Looking Ahead: The Future of Hallmark Mysteries

With Haunted Harmony expanding and other mystery projects like True Justice and Curious Caterer set to return in 2026, Hallmark is definitely leaning into the genre. The network seems to be listening to viewers who want more complex, serialized stories—proof that cozy mysteries can have some real emotional heft.

For Tamera Mowry-Housley, this feels like a new chapter. She’s not just solving crimes—she’s redefining what a Hallmark heroine can be. As filming continues in Ireland, fans can probably expect more surprises, more ghosts, and a lot more heart in the years ahead.

Mark Your Calendars

Haunted Harmony Mysteries: Buried at Sea premieres October 12 at 8 p.m. Eastern on Hallmark Channel. Streaming kicks in the next day on Hallmark+.

Maybe you’re into cozy mysteries. Or maybe you just can’t resist Tamera Mowry-Housley—either way, this one’s probably worth a spot on your watchlist.

Grab your blanket. Pour a cup of tea if that’s your thing.

Get ready to set sail with another Hallmark mystery. Every note, every clue, and the odd ghostly whisper—Gethsemane Brown’s got them covered, somehow.