Would that our memories were self-selecting. But often what we remember most, and most vividly, are those moments that caught us unawares: the things we wish we hadn't seen and have never been able to shake. This group of prominent American writers tries to come to grips with obsessive memory, the uncanny, and the bad dreams that accompany the moments in our lives when we wish we'd looked away, the places we wish we'd never been, and the scenes we...