FALSE FACES by Seth Margolis: Ostensibly, Linda Levinson had no enemies but she is murdered one balmy summer night in yuppie Seaside Harbor, N.Y. When Police Office Joe DiGregorio begins to dig into the case he learns that Linda is quite a character. To her roommate, Linda was a good though moody friend. To her latest one-night stand, Linda was a castrating bitch. To her boss, the dead woman was "quiet . . . sweet . . . didn't go out much." Digging further, Joe finds that Linda was running a stock market scam and her partner becomes the chief suspect in her slaying but then he becomes a homicide statistic. Even Joe almost falls victim to the killer. When its all over, you may be left with a less than satisfactory taste in your mouth because of the shallowness and crass materialism of some of the characters, but still a darn good read.