Tamera Mowry-Housley is off to solve an eery murder mystery in Hallmark Movies & Mysteries’ Haunted Harmony Mysteries: Murder in G Major.

The 45-year-old actress stars alongside new dad Marco Grazzini, Risteárd Cooper, and Adam Fergus in the new movie, airing TONIGHT, September 22 at 9 p.m. on Hallmark Movies & Mysteries.

Here’s the summary: Former orchestra conductor Gethsemane Brown (Mowry-Housley) has moved to the Irish countryside to teach music at St. Brendan’s boarding school. After deciphering a cryptic musical message, she meets renowned composer Eamon McCarthy (Cooper), who is rumored to be behind the death of his longtime love. Complicating things further, Eamon’s a ghost!

Eamon enlists Gethsemane’s help to find the real person responsible, so that he can finally move on and reunite with his true love in the afterlife. With the ghost of Eamon tagging along, Gethsemane investigates, quickly finding resistance from the charming Inspector O’Reilly (Fergus), who takes a liking to her but considers the case closed.

Juggling her sleuthing with her work, she meanwhile struggles to turn the motley crew of students at St. Brendan’s into a choir that can compete at Regionals, though a handsome math teacher Griff (Grazzini) is able to help her gain some ground.

But when her sleuthing brings her close to the real murderer, it looks like Gethsemane has only a ghost of a chance of making it out alive!

Be sure to watch the sneak peek of the flick below and tune in tonight to watch!

At the moment, it’s not known if there will be additional Haunted Harmony Mystery movies. Find out the status of your other fave murder mystery franchises on Hallmark Channel now!