Four friends set out into the night in Cambridge, Massachusetts, undeterred by the fact that one of them might actually be dead. Deb has perfected the half-hour orgasm. Grant, a geek, desperately desires Deb. Depressed Arlene has just improbably slept with Johnny, their leader, who recently and accidentally shot himself to death. But is he (or anyone) alive or dead until heś observed to be by someone else? Maybe not, according to Dr. Erwin Schrödinger,...