Behind closed doors

When 14-year-old Sophie Monroe suddenly vanishes one night it looks at first as though she's run away from home. Her computer and mobile phone have gone, and she's taken a bag full of clothes. However, as the police investigation unfolds a wealth of secrets from the surrounding community start coming to light. For Detective Sergeant Andrea Lawrence, the case is a painful reminder of the tragedy that tore her family apart over 20 years ago.