As December sweeps through South Lick, Indiana, Robbie's life seems merry and bright like the string lights glistening around town. But strange happenings signal a bumpy ride into the holidays. First a man raises eyebrows at Pans 'N Pancakes when he claims to be the long-lost half-brother of Robbie's assistant. Then a fire destroys the home of a controversial anesthesiologist, exposing skeletal remains in his attic. Helplessly intrigued, all Robbie wants for Christmas is to stop her winter wonderland from becoming a real nightmare. With a decades-old mystery taking shape, can she run as fast as she can in pursuit of a killer who's harder to crack than a stale gingerbread man?