This is one of the strangest books I have read in a while. It concerns two guards in an exclusive apartment block who see almost all the residents leave. They are sure that there is one left, but not certain. They continue their routines, of patrolling the basement, and stock checking whilst still not know what is happening outside. They have supplies delivered erratically, and.later in the book are joined by a third guard who disturbs the status quo. The author (and translator) manage to build the suspense and the growing paranoia of the guards all the way through the book, and there is always a feeling of dread and confusion that the author conveys. But at the end, I didn't quite get the final conclusion. Maybe it was delusion, or maybe not. And perhaps that is the the point.