Vanish in an Instant

Virginia Barkeley is a nice, well brought-up girl. So what is she doing wandering through a snow storm in the middle of the night, blind drunk and covered in someone else's blood?
When Claude Margolis' body is found a quarter of a mile away with half-a-dozen stab wounds to the neck, suddenly Virginia doesn't seem such a nice girl after all. Her only hope is Meecham, the cynical small-town lawyer hired as her defence. But how can he believe in Virginia's innocence when even she can't be sure what happened that night? And when the answer seems to fall into his lap, why won't he just walk away?