A large hotel restaurant is robbed. There's no trace of the robbers or the loot. Among the victims is a serious criminal. It quickly becomes clear that the robbers were well-versed in the hotel. And the detectives realize they are not the only ones hunting the robbers. Charlie has informed Hein about the youth gang's activities, but now he's in danger of becoming a victim himself.

During the unveiling of a famous, recently restored masterpiece, the restorer collapses. He turns out to have been poisoned. Was the controversial restoration fatal? The question soon arises whether the restorer was the intended victim. A second murder leads detectives into the world of "haute finance" that made the restoration possible.