Steven Weber, Molly Shannon and Patricia Velasquez star in the story of successful business executive and workaholic Calvin Carter. Success has come at a price for Calvin, and cost him his marriage and his relationship with his son. One Christmas Eve, when the rest of the world has gone home, Calvin is trying to close a billion dollar deal that will mean international success for his company. For Calvin this is the best Christmas Eve ever, but it soon turns into a nightmare when disaster unexpectedly strikes and he wakes up in hospital. He learns that he has just twelve days to actually achieve "the best Christmas Eve ever", or never see another Christmas again. Each time Calvin relives December 24th he must figure out what to do differently to make it right, and finally learns to reconnect with the people who constitute the meaning of his life, and for the first time understand what Christmas is all about.