On Sydney’s Lower North Shore lies the suburb of Mosman.

Tree-lined streets wind between Federation homes and waterfront apartments. From the headlands, you can see across the harbour to the city skyline. It is a suburb known for quiet affluence. Professionals, retirees, and young families share the same streets. Neighbours greet each other at the shops, children walk safely to school, and the elderly often live independently in well-kept homes and apartments.

By the late 1980s, Mosman was a picture of suburban stability. To many, it was one of the safest places in Sydney. Crime was something that happened elsewhere.

But beneath this polished surface, fear was about to take hold. Elderly women, living alone in what they believed were secure communities, would soon find themselves the targets of a ruthless predator.

The streets of Mosman would never look the same again.