Johan is a cold and calculating killer with a mysterious past, and brilliant Dr. Kenzo Tenma is the only one who can stop him! Conspiracy and serial murder open the door to a compelling, intricately woven plot in this masterpiece manga thriller.

More pieces of the puzzle to Johan's past are uncovered in Prague! Everyone is after an old tape recording of an interview with Johan as a child, and Tenma learns more about Johan's mother - a beautiful woman taken away by the secret police. And then Johan makes his presence known when a brillant young detective of the Prague Police Department is accused of poisoning three of his superiors...with whiskey bonbons.