A case that has remained unsolved for two decades is reopened when the decomposed body of an unidentified woman is found buried at a construction site. Meanwhile, a convalescing Sheppard (Michael Michele) is confined to desk duty until further notice. And the romance between Falsone (Jon Seda) and Ballard (Callie Thorne) heats up considerably, forcing Giardello (Yaphet Kotto) to warn the couple to "cool it" -- or face suspension. ~ Hal Erickson, Rovi