1929: Girls are going missing in Melbourne. Little, pretty golden-haired girls. And not just pretty. Three of them are pregnant, poor girls from the harsh confines of the Magdalene Laundry. People are getting nervous.
Polly Kettle, a pushy, self-important Girl Reporter with ambition and no sense of self-preservation, decides to investigate - and promptly goes missing herself. It's time for Phryne and Dot to put a stop to this and find Polly Kettle before something quite irreparable happens to all of them.
It's all piracy and dark cellars, convents and plots, murder and mystery... and Phryne finally finds out if it's true that blondes have more fun.