The Beaumont Children

On Australia Day 1966, Jane, Arnna, and Grant Beaumont walked off Glenelg Beach in Adelaide and never came home, and their disappearance remains the country's longest-running missing persons mystery. The strangest piece of evidence isn't a witness sighting, it's a bakery receipt: a pound note the children shouldn't have had, and a second lunch bought for someone who was never seen buying it himself. Sixty years, one wealthy suspect nicknamed the Satin Man, three factory excavations, and still no answers.