Daisy Clark appears as the gentle, orphaned niece of Ministry Councillor Burke, and a model of refined virtue. But in truth, she was trained in secrecy by a martial arts master and is now the feared "Lady in Crimson," a vigilante who defends women. While searching for her missing friend Julia Irwin, she rescues Nora Davis and other women from torment. Guided by them, Clark uncovers the sinister truth: David Davis is behind both their suffering and Irwin's disappearance. Uniting with the rescued women, Clark uses her formidable skills to subdue David Davis, securing justice for Nora Davis' group and avenging Irwin.
