Across the Borderline is a psychological suspense thriller that captures the varied psychological worlds of its three main protagonists. The story examines the motivation and fears of a psychologist, the loneliness and guilt of a female business executive, and the cockiness and methodical analysis of a sophisticated "cowboy" detective. The three of them are thrown together by circumstances surrounding each of their efforts to solve a crime involving multiple murders and international intrigue. In the face of mounting danger, they are forced to forge an alliance to investigate the murders and the sabotage of implanted neurochips that have replaced psychotropic drugs such as Prozac and Well-Butrin. These neurochips have been implanted in half the population of the United States. Their investigation takes them on a roller coaster ride of suspense from the Southwest to the Northwest to New England to the Far East. In solving this crime their skills are pitted against a combination of the greed of a Health Maintenance Organization and attempted subversion by a foreign government. The foreign government is China; the United States' last major adversary since the end of the Cold War.