The CEO of a computer company gets murdered and one of his employees is suspected of this murder. First, everything seems clear and he as the logical killer, but during the trial things become more complicated.
A teacher has an affair with an older, married woman. One day, his ex-lover lies dead in his apartment, but he has no recollection of what happened. After he gets rid of the body, he receives a letter with a picture of the dead woman.
After many years a widow claims to have seen her dead husband in the streets and asks Renz and Matula to investigate in this matter. They quickly realize that this matter is much more complicated as it seems.