One of Professor T's students attempts to commit the perfect murder to spite the professor.

Debbie's boss is found murdered at work on the evening, Debbie worked late. Her fiance, Daniel, and Anne investigate. T is in a mental home, mentally absent.

Professor T is called upon to solve the murder of a Neo-Nazi. At the same time he starts to question his mother's retelling of his fathers suicide.

A man is stabbed to death during a German nationalistic gathering. T searches for the truth about his dad's death.