From: The Dark End of the Street: New Stories of Sex and Crime by Today's Top Authors, ed. Jonathan Santlofer and S.J. Rozan. Bloomsbury, 2010.
Block's contribution to this anthology of literary and crime fiction authors begins with a sexual predator looking for his next victim at a bar. Just when I began to guess where the story was going, Block broke the "fourth wall", offering three different ways the story could turn out, one of which was "true".
If you don't mind Block breaking the fourth wall, this story is a fine show of the writer's imagination at work and how many different tales can be spun from the same starting point.