Christmas break. A young woman (Emily Blunt) catches a ride home from a stranger she meets through a college ride board. Racing to beat a severe winter storm, the two young travelers take a shortcut down a remote country road, only to find themselves forced into a snow bank by a mysterious vehicle that engages them in a dangerous game of chicken.
Over the long night that ensues, an intense relationship develops between the pair as they must brave the elements and confront the road’s sinister legacy that dates back to terrible events that occurred there in the 1950s.