Blue Blood is a television film from the crime series Tatort on ARD and ORF. The film was produced by Norddeutscher Rundfunk under the direction of Helmut Förnbacher and first broadcast on January 9, 2000. It is the 433rd Tatort episode. For Chief Inspector Paul Stoever (Manfred Krug) it is the 38th case and for his colleague Peter Brockmöller (Charles Brauer) the 35th case that he is investigating. The Hamburg Chief Inspectors Stoever and Brockmöller are getting to the bottom of the murder of the young television journalist Anette Bille. Shortly before her death, she wanted to sell a show concept to the competition. The inspectors are considering whether this is why the young woman had to end her life so early. Her husband, Jochen Bille, states that his wife wanted to film her planned survival show in a parking garage last night. Stoever quickly finds out that the marriage was not going well and Jochen Bille becomes entangled in contradictions. But Anette was the creative head of the company and her absence was hard to replace, which speaks against the husband as the perpetrator. The detectives also have to investigate in highly respected aristocratic circles. According to the research, the murdered woman was the lover of Count Ehrenfried, a member of the noble family of Schönach and Ratau. When Stoever and Brockmöller visit him, he is deeply affected by the death of his beloved. He was looking forward to their child, because Anette Bille had been three months pregnant. He also wanted to leave his wife and start a new life with Anette Bille. According to the internal succession of the Schönach and Ratau family, the head of the family Sigbert had named his grandson Ferdinand as heir, which could have changed if his uncle had had a child. Before they can deal with the young man, however, the old Count Sigbert himself comes under suspicion after the investigators discover that he has a National Socialist past and Anette Bille had researched this as part of her journalistic work. If the authorities had found out about this, the return of family art treasures that had been under state administration since the end of the war would have been at risk. After the investigators researched Ferdinand as the perpetrator, Ernst Günter Muller came into the investigators' sights. He had recently become a member of the von Schönach and Ratau family and had bought his noble title. Poldi von Schönach and Ratau adopted him so that she would have money for her nephew Ferdinand. She wanted to give the talented violinist a Stradivarius, but her fortune was not enough. The new count dreams of turning the castle into a noble golf hotel. When he unexpectedly met Anette Bille at the von Schönach and Rataus family, and he had once been friends with her, he feared that she might reveal to the noble family that he had a very inglorious and criminal past. Using a trick, the detectives were able to get Count Ernst Günter to make an involuntary confession and arrest him.