Derrick

After an afternoon spent in Munich, Ellen Theiss, a young student from a provincial college, does not return to the institute. Her lifeless body is found along the path through the woods that leads from the train station to the college. The news of his death caused panic among the companions: six months earlier, in fact, another girl had been murdered in similar circumstances. During the investigation, Derrick realizes that Ellen's death is to be connected to the crime that took place some time before and he devises a plan to frame the killer.

The lifeless body of the owner, Martha Balke, is found in a country house. For Derrick the case seems simple enough: the victim's husband, Alfred, inherits a great fortune with Martha's death and the man now also has the possibility of living with Roswitha, his young lover. Meanwhile, Marta's twin sister Johanna returns to Munich from the United States. When Derrick meets her he has an idea that could be helpful in framing the killer.

The 75th anniversary of the founding of a choir is celebrated in a hotel. At the party we sing, drink and dance. August Bark is also particularly cheerful and, during the evening, gives life to a provocative dance with the young and charming Irene Eppler. Shortly thereafter, the girl is found killed in her hotel room: she had a basal skull fracture. Chief Inspector Derrick begins to investigate trying to reconstruct the facts based on the testimony of those present. While it's not easy to identify the killer, Derrick has an idea as to who might be the culprit.

Helga Landau, a waitress in a small village tavern, returns one evening from Munich with the last bus of the day, the midnight one. She learned from her doctor that she was pregnant and wants to break the news to her young friend, Erich Holler, the son of the landlord where she works. A heated discussion arises between the two young people because Erich does not want to marry Helga and, on the contrary, tries to buy the girl's silence. The next morning Helga's lifeless body is fished out of a pond.

Along the metropolitan railway between Munich and Ottobrunn, the police find the body of a young woman, the third in a few weeks. Derrick and Harry suspect that the killer is acting on the edge of the railway line because it is someone who works in that environment. The investigations lead to a construction site of workers who have been working on the arrangement of the tracks for some time.

Elder Paul Seibach has been working as a security carrier for a supermarket for a year. One day, waiting for him at the exit, the man finds a masked thug who, after robbing him, manages to escape. Back home, Seibach shows up at the door of his neighbor, Harald Rohn, claiming to have recognized him as the perpetrator of the robbery. That same evening Derrick is called to the crime scene: Seibach's body lies on the road in front of the house and his children, Lena and Eugen, cannot explain their father's tragic death.

A bank robbery goes down on a peaceful Monday morning. A foolishly brave customer rips the mask off from one of the robbers, and is shot right after. Derrick recognizes the shooter from the surveillance tape.

A couple arrives home on a cab. Stepping out and preparing to pay the fare, they hear three gunshots. Sales consult Alfred Naujocks lies dead on the street.

Erich, a drug addicted burglar, enters a presumably unoccupied apartment in search for stuff to pawn. There isn't much to be stolen, but he finds a dead young lady in the bedroom.