Overview: This chilling CIA episode details the long and difficult investigation which began with the disappearance of 18-year-old secretary Sarah Spiers from a night club in the up-market Perth suburb of Claremont on Australia Day, 1996. The new information has been kept secret by police until now for fear its release could jeopardise the investigation. Now, for the first time, it's being shown to the public and viewers will be asked to look closely and to call Crimestoppers if they believe they can help.