The plot develops at a high level of suspense from the first to the last page:
A virus has escaped from a military laboratory and has quickly swept through the globalized world before the antiviral drug was available. Within a few weeks everyone over the age of 18 begins to age rapidly and dies. All adults in the world are wiped out. The inexperienced children and adolescents fight a pointless and bloody battle for brief survival. They quickly learn how to kill, but learning how to love does not seem to be worth the effort any more.