New York dress designer, Susan Yates and Lyle Curtis, chief assistant D.A. together again to sleuth the killing of lady villainess of the advertising business. They unearth plenty of blackmail, hatreds, enmities, as Susan gossip-snoops for Curtis, follows her own angles on the case, and lets a catspaw get in danger this time. Close-reading crime concoction, for specialists who like them tightly knit.