When Jodie Walsh’s four-year-old son vanished from a lakeside picnic he was presumed to have drowned. But his body was never found, and Jodie has always believed he was abducted. Nine years later she sees a boy on his way to school and is convinced it’s her missing son. But can she convince the police that the man looking after the boy is his abductor? 1 DVD, 179 mins.