Hitchhiking along the Hume Highway, a woman searches for the man who killed her daughter. Her only clue - left in her daughter's final phone message - is that the man has a tattoo on his left arm saying 'Die Mother'. With her daughter dead and with nothing to live for, the mother is on a path of self-destruction. Consumed by guilt and the desire for revenge, her personality and appearance begin to alter. Becoming almost wild, she forgets her real name and where she used to live and work. Each driver she meets on her dangerous journey could be the killer - and each lift she accepts could be her last.