BAD NEIGHBORS

BAD NEIGHBORS Kathrine Beck (Doubleday, $22.95) Anita Jamison is thisclose to divorcing David, a halfhearted househusband who barely manages to drive the kids to school. Enter Sue Heffernan, a homemaker from hell who's undermining Anita with cookies and casseroles. Fourteen-year-old Lily pegs Sue as ''totally demented,'' but little Sylvie is more vulnerable to Sue's cozy advances -- as is David. While Anita tries to hang on to her girls and to make a decision about her lover, Frank, Sue escalates her domestic campaign -- by way of The Twilight Zone -- to replace her current husband with David. A surreal tale of marriage in the '90s, meticulously plotted right up until its elegantly evil climax. B