It recounts some of the history of a series of murders in post-World War II Sydney by women using thallium sulphate poisons.
It was written and directed by Sonia Bible, produced by Susan Lambert and narrated by Dan Wyllie.
The crimes of three murderesses, Yvonne Fletcher, Caroline Grills and Veronica Monty are examined in the context of a wave of dozens of thallium poisonings that took place in Sydney in the period 1947–1953.
The events are related to post-war poverty and social stresses, and to the ready availability of thallium sulphate rat poisons which could be easily administered to humans in food and drink, being virtually tasteless and odourless.
As a result of these events, the Australian states began to ban unrestricted availability of thallium in 1952.