In Jewel Bay, all is merry and bright. At Murphy's Mercantile, AKA the Merc, manager Erin Murphy is ringing in the holiday season with food, drink, and a new friend: Merrily Thornton. A local girl gone wrong, Merrily's turned her life around. But her parents have publicly shunned her, and they nurse a bitterness that chills Erin. When Merrily goes missing and her boss discovers he's been robbed, fingers point to Merrily-until she's found dead, a string of lights around her neck. The clues and danger snowball from there. Can Erin nab the killer-and keep herself in one piece-in time for a special Christmas Eve?