The unsolved 1973 murder of young Sydney mother Lynette White terrified the community and has baffled police for more than 40 years. Lynette’s husband Paul discovered her body when he returned home from work and has lobbied tirelessly in the years since to have the murder re-investigated. When he joined forces with an old friend, former ABC journalist Bob Wurth, those efforts began to bear fruit. Two years ago a cold case investigation began and vital new leads are now emerging. Australian Story was granted rare access to this ongoing investigation, going behind the scenes with homicide detectives as they search for a breakthrough in the case.