Benoît, 50, is a police lieutenant wounded by the disappearance of his wife, Lise. Unable to perform his grief, he sees his physical and mental health decline when she mysteriously surface again years later.
A couple runs over a cyclist with their car, but a hitchhiker appears before they can get rid of the lifeless body. They allow the hitchhiker to join them, not knowing what he saw. Doubts overtake them. Playing on the ambiguity of the situation, the hitchhiker will not let the couple come out of this intact.
