Jenn knows something's up when a rare, pre-WWII piano is linked to a hidden trove of historical treasures. See what mysteries lie behind the keys in Sunday's new "Garage Sale Mysteries: Murder in D Minor." Don't forget to set your DVRs so you don't miss a moment! | Hallmark Mystery

A rare pre-WWII German piano comes with a secret history... one that may have deadly repercussions. Take a sneak peek at this Sunday's "Garage Sale Mysteries: Murder in D Minor" then set your DVRs so you don't miss a single clue! | Hallmark Mystery

Sleuthers, go behind the scenes of next week's "Garage Sale Mysteries: The Mask Murder" with star Lori Loughlin. And don't forget to set your DVRs so you don't miss a moment of our Summer of Mystery! | Hallmark Mystery

We have a treat for you, Sleuthers: a picture perfect sneak peek at Sunday's "Garage Sale Mysteries: Picture a Murder." Set your DVRs and see if you can spot the clues and identify the killer! | Hallmark Mystery