简介 An 18 year old girl called Joy has gone missing. Another girl called Helen is a few weeks away from leaving her care home. Helen is asked to 'play' Joy in a police reconstruction that will retrace Joy's last known movements. Joy had everything. A loving family, a boyfriend, a bright future. Helen, parent-less, has lived in institutions all her life and has never been close to anyone. Gradually Helen begins to immerse herself i nto the role, visiting the people and places that Joy knew; quietly and carefully insinuating her way i nto the lost girl's life. But is Helen trying...