Pearson relies on stereotypes and stock characters; these characters are carried on the current of the plot. Despite the presence of Daphne Williams, cop psychologist, the novel is not grounded in any kind of character psychology. The characters are moved to where they need to be in order to drive the plot to its climax.

Lou Boldt is a policeman in the finest cop tradition; even his name carries associations of strength and uprightness. Boldt stands up for his beliefs when everyone is against him and just tries to get the job done. He is also a family man, concerned about the safety of his wife and children as the Blue Flu invades his home. After angry cops throw a brick through his window, Boldt sends his wife Liz and his children to stay with friends; tension between them grows as he is more consumed with the case...