Cracking the case can get complicated and outrageously wacky when a family of detectives is involved, but Lutz has a blast doing it in her delicious debut. Isabel "Izzy" Spellman, a San Francisco PI who began working for Spellman Investigations at age 12, could easily pass as Buffy or Veronica Mars's wiser but funnier older sister. Izzy digs TV, too, especially Get Smart (an ex-boyfriend's ownership of the complete bootlegged DVD set is his major selling point). Now 28, Izzy thinks she wants out, but elects to take on a cold case while dealing with 14-year-old sister Rae, a nightmarish Nancy Drew, and parents who have no qualms about bugging their children's bedrooms. At times the dialogue-heavy text reads like a script and the action flags, but these are quibbles. When Rae suddenly disappears, Izzy and her family must learn some serious lessons in order to find her. Can the family that snoops together stay together? Stay tuned as a dynamic new series unfolds. 150,000 first printing.