In a Sydney suburb, two nurses, Maria and Flora, a housekeeper, Lotte, and a solicitor, Arnold, attend to Elizabeth Hunter as her expatriate son Sir Basil, a famous but struggling actor in London, and daughter Dorothy, a divorced and down at heel princess, convene at her deathbed. They come to make sure they can leave Australia with their hefty inheritance.

Suffering from a mysterious affliction, a young boy is taken to a secluded hospital by his fearful parents. Lloyd soon learns that more harm is being done than good.

Underbelly is an Australian television true crime-drama series, each series is a stand alone story based on real-life events.