War correspondent Billie Walker is happy to be back home in Sydney, but for her the heady postwar days of 1946 are tarnished by the loss of her father and the disappearance in Europe of her husband, Jack. She reopens her late father's business, a private investigation agency, and when a young man, the son of European emigrants, goes missing, finds herself on a dangerous new trail that will lead up to both the highest levels of Sydney society and down...