In April 1974, teenage cousins Raylene Eaton and Yvonne Waters went out to enjoy live music at a Perth pub and never returned home. Last seen leaving the White Sands Tavern with three unidentified men, the girls vanished without a trace. More than 50 years later, questions remain about missed clues, early police assumptions and whether someone still holds the key to solving one of Western Australia's most haunting mysteries.