When a holiday decorating contest turns deadly, twin sisters Alex and Hanna trade tinsel and twinkle lights for tracking the twists and turns of a cunning killer.
Alex and Hanna, owners of Murder and Mayhem book and chocolate shop, are hoping for a quiet holiday. That is, after Alex is finished judging the Deck the Halls contest organized by Vanessa, nicknamed "The Dragon." The whole experience has turned Alex's usual festive spirit a little grinchy. Instead of inspiring holiday cheer with fun lawn displays, the contest has turned cutthroat and decorations have started disappearing. After Alex's beau, Tom, is seen in a heated argument with the Dragon about his stolen trimmings, Alex finds him dressed as Santa, kneeling over Vanessa's dead body . . . with one of his missing candy cane decorations buried in her chest. It's no surprise he becomes the sheriff's top suspect.
Alex and Hanna quickly amass a cast of suspects deeper than Santa's reindeer roster, including an old family friend tasked by their mother with romantic interference; a nosy reporter eager to reveal Alex's previous murder–y exploits; and the victim's psychologist–to–the–stars husband with a spicy secret. But as they try to catch a crafty killer, Alex also grapples with the escalating wrath of Tom's daughter, and a mysterious psychic dropping cryptic clues, while Hanna deals with her own Christmas crisis.
Murder puts a bitter spin on the twins' sweet confections and they must find the killer and wrap up the case to keep Santa off the naughty list.
