For the past 20 years, Frank Harrington has grudgingly driven his family to celebrate Christmas with his mother-in-law. This year, he takes a shortcut. It's the biggest mistake of his life: The nightmare begins. A mysterious woman in white wanders through the forest, leaving death in her wake. A terrifying black car - its driver invisible - carries the victims into the heart of the night. Every road sign points to a destination they never reach. The survivors succumb to panic, to madness; deeply buried secrets burst to the surface, and Christmas turns into a living hell.