Summer of 1876: San Francisco is in the fierce grip of a record-breaking heat wave and a smallpox epidemic. Through the window of a railroad saloon, a young woman named Jenny Bonnet is shot dead. The survivor, her friend...Summer of 1876: San Francisco is in the fierce grip of a record-breaking heat wave and a smallpox epidemic. Through the window of a railroad saloon, a young woman named Jenny Bonnet is shot dead. The survivor, her friend blanche beunon, is a French burlesque dancer.