Anne Hamilton-Byrne was beautiful, charismatic and delusional. She was also incredibly dangerous. Convinced she was the reincarnation of Jesus Christ, Hamilton-Byrne headed an apocalyptic sect called The Family, which was prominent in Melbourne from the 1960s through to the 1990s. With her husband Bill, she acquired numerous children – some through adoption scams, some born to cult members – and raised them as her own. Isolated from the outside world, the children were dressed in matching outfits, had identical dyed blonde hair, and were allegedly beaten, starved and injected with LSD. Taught that Hamilton-Byrne was both their mother and the messiah, the children were eventually rescued during a police raid in 1987, but their trauma had only just begun.

It's based on the events of 6 April 1966, where, in the Melbourne suburb of Westall, 200 students, staff and local residents watched as a strange object hovered overhead for several minutes, landed briefly, then lifted off and vanished. Witnesses described it as low flying, silver-grey and shiny, shaped like a ‘cup turned upside down on a saucer’ and accompanied by five light aircraft. A mass of excited students surged out of school and ran after the object. Many reported seeing a circle of flattened grass on the ground where it had landed. One said she touched it as it took off. Others observed men in uniforms cordoning off the ‘landing site’ and removing soil samples by the truckload. Some say they saw uniformed men torch the area a few hours later. The incident was reported on the news on television that night and in the local newspapers.