Forget a white Christmas in Houston. Poet, chef and amateur sleuth Neil Marshall sees a blue, blue Yuletide heading straight at him. And as if his holiday funk and the hectic seasonal demands aren't enough, Neil's grandfather, who bears an uncanny resemblance to old St. Nick, decides to make an unexpected visit. Soon, however, Neil learns that Grandpa's normal holiday cheer is closer to holiday fear as the elder Marshall is on the lam from a murder charge back in Colorado. It's up to Neil to nab the real murderer or else Grandpa's twelve days of Christmas may be his last.