Quinn Sinclair, who uses the name Mrs. Paschal professionally, and her wryly observant partner Garnick get two cases on the same day - one to help a man prove he didn't kill his wife, another to help a lawyer find reasonable doubt that his client killed her ex-lover's new bride. As the detectives dig deeper, they unearth facts that tie the cases together in disturbing ways. This tantalizing tale of 19th Century Chicago comes complete with corrupt politicians, yellow-press reporters, gambling parlors, and colorful bawdyhouse madams. At every turn in the investigation, Quinn discovers more suspects and more secret motives for murder. Not least among her worries, someone seems intent on murdering her!