In 1997, Joe Cinque was drugged and killed by his girlfriend, Anu Singh, during a farewell dinner party in Canberra—while their guests looked on. This shocking case of premeditated murder, mental illness, and bystander silence has haunted Australia’s true crime community for decades. We explore the disturbing events, the controversial court ruling, and the lasting legacy of a crime that asked: how could so many know, and do nothing?