THE NIGHT IN QUESTION

THE NIGHT IN QUESTION Tobias Wolff (Knopf, $23) Wolff's first story collection in a decade has the blunt impact of its piece de resistance, ''Bullet in the Brain.'' Direct, compressed, and unflinching, these tales of emotional awakenings, often triggered by a resonant phrase or a casual epiphany, range from laugh-out-loud funny to mind-bendingly sad. Wolff is both an exquisite stylist and a great storyteller: In ''Mortals'' a faked obituary backfires on both its perpetrator and its author; in ''The Other Miller'' a soldier is relieved of duty when his mother is mistakenly reported dead, and he milks the mix-up for all it's worth. Wolff's tightly wound tales often spring open when his characters surrender, in almost visionary moments of abandon, to forbidden pleasure or certain disaster. Except for a single hollow effort, about lesbian lovers, where the author is clearly out of his element, contemporary short fiction doesn't get much better than this. A