San Francisco's Sharon McCone, staff investigator for a Legal Services co-op and deliverer of remarks like ""I don't have to have to be romantically involved with someone to feel complete,"" is no doubt supposed to be everybody's favorite liberated shamusette. So why does she tremble so much? She trembles when she sees the stabbed body of antique-dealer Joan Albritton (a Legal Services ex-client), she trembles when land-development and smuggling schemes come to light, she even trembles when she's in danger of being caught gate-crashing at a real-estaters' conference. In any event, few readers will tremble as Sharon's tame and tepid investigation takes her into the antique-and-art world (not especially well detailed), into car chases and such with thugs (some nice Frisco geography), and into the arms (well, almost) of Lieut. Gregory Marcus, Homicide, ""a wolf in misogynist's clothing.