What are the motifs in Death at La Fenice by Donna Leon?

Sexuality is a recurring idea in the story. Death at La Fenice deals with subjects that are taboo in the society. Brunetti investigates the aspects of human life that are impolite and unacceptable in his father-in-law's world. The primary avenue of these taboo topics is sexuality. Sex is the root of most of the conflicts in the novel. Wellauer is a sexual criminal. He is a sexual blackmailer, a rapist, a philanderer, and a pedophile.