US Intelligence Agent sent to Tokyo for a routine courier mission. He uncovers a communist assassination plot, survives an attack in a steam room, investigates with local police, and contacts a colleague in Formosa for clues. He is the central protagonist navigating the conspiracy.
Primary antagonist and target of Mark's intelligence investigation.
Professional and personal rivalry stemming from competing interests.
Allies who investigate clues and travel together during the mission.
Mark's operational goal centers on protecting and investigating threats to the Commissioner.
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