Who killed Sarah Compton? She was a ‘prying old busybody’, but surely that isn’t an adequate motive for murder? When her grisly corpse is found on the restroom floor of the Melbourne Telephone Exchange, there is no lack of suspects. Could Gerda MacIntyre, the girl with the ‘tragic eyes’, be capable of such a heinous crime? What is silly, pretty Gloria Patterson hiding? Is the attractive John Clarkson too good to be true? Will Detective- Sergeant Matheson prove to be the better man? And will our plucky heroine Margaret ‘Maggie’ Byrnes uncover the murderer before he, or she, strikes again?