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 masterwork of suspense. Tenma learns that ten years ago, a woman lived in an old apartment house in downtown Prague with twin children, above a sign with three frogs. The neighbors also tell him about the Czech secret police and a questionable fire. Could the twins have been Johan and Anna? Meanwhile, Suk, a young detective in the Prague Police Department, meets a beautiful young woman named Anna in a bar. Suk also crosses paths with Tenma as a new terror looms over them. BKA chief inspector Lunge, now convinced of Johans involvement in the serial murders, comes to Prague to find out what Johan really is.
