While the Zurich cultural scene discovers the touching portrait photography by Corinna Riemer at a vernissage, Borchert finds a corpse in front of the door: organizer and art patron Altweger was shot in the courtyard of his own gallery. Statements about a loud argument incriminate the caterer Giovanni Lazzari, who has traces of smoke on his hand and has to admit illegal possession of a pistol. At the request of Lazzari's wife Cristina, Borchert and his boss Dominique take over the defense. However, his instinct tells the "lawyer without a license" that his client may not have fired the fatal shot, but that he was involved in the crime. Borchert also uses the observation skills of the experienced Corinna Riemer, to whom he feels attracted, and thus comes across an intimate secret and two other murder suspects: Altweger's younger wife and his nephew Stephan are a couple. But there are other hidden conflicts that Borchert must bring to light in order to solve the mysterious case.
—ARD Das Erste