Derrick - Season 6 (1979)

A doctor has reason to believe that his elderly patient didn't die naturally. Derrick agrees.

When the housekeeper of the Gerdes couple comes back from shopping, the lady lies dead on the bedroom floor. Someone has also left a flower bouquet.

Ewald Bienert phones home from his favorite pub, and realizes that things at home aren't right. But what has happened at Ewald's home? Even Derrick is confused.

Wolfgang Horn is suspected for murdering his ex wife. The only person who can prove his innocence is the murdered woman's deaf-muted sister Lena.

A woman who barely survives a traffic incident tells Derrick about a strange car that caused the crash.

In a burglary to a laboratory, a secret research report disappears and a guard gets killed. Derrick has a hunch that the crime is connected to a congress in West Berlin.

Derrick goes on vacation to Upper Bavaria, but recreation is cut short when a new acquaintance, Albert Grosser, gets into trouble.

The police gets informed about a businessman, who has been kidnapped. A ransom of a million Deutschmark in small bills is requested and delivered.

Arthur Tobbe is shot on the street and gets wounded. But who was the shooter, and what is the role of the unknown lady who was with Tobbe?

An elderly lady is injured in a shooting incident. It would seem that the shooter only tried to scare her.