Wagner has the odd but marvelous ability to be resolutely kind and unsparingly cutting at the same time, a contradiction played out hilariously in the final novel in the Hollywood-set trilogy that includes ''I'll Let You Go'' and ''I'm Losing You.'' The title is a playful double entendre that echoes its predecessors and refers to the Buddhist notion of striving for unattachment; here, the practicing Buddhist -- both earnest and ridiculous -- is movie star Kit Lightfoot, a George Clooney kind of dude who suffers brain damage after a devastating accident. Interwoven with Kit's story are those of Lisanne, a bonkers Tinseltown groupie, and Becca, a struggling (and none too sane) actress getting by as a Drew Barrymore look-alike. While celebrities from Marisa Tomei to Robert Thurman (a Buddhist prof and papa to Uma) float through, in the end, Wagner's own characters are the real attention grabbers.

