Mother. Nurse. Gold-digger. Cause célèbre. When Daisy de Melker stood trial in 1932, accused of poisoning her son and two husbands, the public couldn't get enough of her. Crowds gathered outside court baying for blood, and she waved to them like a celebrity. Against the backdrop of Johannesburg in its golden age, a booming metropolis of opulence and chaos nicknamed the 'City of Gold' and the 'University of Crime', she had quietly gone about her sinister business while around her sensational crim...