Don't Be Lonely Homicide : Season 12 Episode 20

Homicide detectives investigate a dating service when a body is found in scrubland. Is she the only one or are there more victims to come? Several middle-aged and usually well-off women have disappeared in various cities around Australia, and the only other thing they seemed to have in common was membership of various lonely hearts clubs. Nobody connects these disappearances until a sinister couple posing as brother and sister make a slip in their near perfect strategy for murder.