Inspector Lunge investigates the murder of a prostitute and suspects a senator named Dr. Boltzmann of involvement. His dedication to his work however takes a toll on his family life.

Meanwhile, the vindictive Eva continues to press Lunge to catch Tenma. She also has a new lover, her garderner.

Nina confronts Muller, one of the two detectives responsible for the death of her foster parents, the Fortners. Muller discovers that his protege, Roberto, is actually working for Johan and is now tasked with killing Nina.

Richard's past and present situation is revealed. Johan continues to bond with the Schuwald family and his intention is revealed.

Lunge, from the BKA, learns that Johan may indeed exist. Nina goes into regressive hypnosis to learn more about the picture book and her past. Mr. Schuwald has a message for Dr. Tenma and sends Karl to Dresden to pass it to him.