Spunky Allison McClare is determined to be a fearless, independent woman, resorting to a mammoth hat pin for protection on her way to and from the school where she teaches. But when she takes a notion to explore the wild Barbary Coast she quickly discovers she is no match for rum-soaked brute strength. Detective Nick Barone would rather do almost anything than teach this petite socialite jiu-jitsu, but it seems he has little choice in the matter...