The Claremont serial killings is the name given by the media to a case involving the disappearance of an Australian woman, aged 18, and the killings of two others, aged 23 and 27, in 1996–1997. After attending night spots in Claremont, a wealthy western suburb of Perth, Western Australia, all three women disappeared in similar circumstances leading police to suspect that an unidentified serial killer was the offender. The case was described as the state's biggest, longest running, and most expensive investigation.