Doebin is an island reserve for Aborigines off the coast of north Queensland. In 1930 the superintendent goes insane after his wife dies. He sets fire to his house, kills his children, and wounds others in a bloody rampage that ends in his being shot by an Aboriginal man. Interestingly, this superintendent was a benevolent dictator who actually appeared to care for the Aborigines, whom he considered childlike and treated in a strict paternalistic manner. In return, his charges respected him and called him "Uncle Boss."

The book tells this story from the perspectives of several different characters and reveals how the events of 1930 influenced their lives and bound them together in mysterious ways. We learn of the influence these events had on the subsequent lives of the island's little community: doctor, matron, schoolteacher, boarding house operator, priest, and Manny Cooktown, the man who shot and killed the madman, Captain Brodie.

Time moves on, things change. World War II comes and goes. On Doebin Island, however, Aboriginal people continue to be treated like prisoners. Benign paternalism is replaced by out-and-out hatred during the reigns of a succession of superintendents, who treat their Aboriginal charges as if they were animals.