" Do you think my father killed her, Nick?” “No,” I said. “Why should I?” “Well, the police have— Listen, she was his mistress, wasn’t she?” I nodded. “When I knew them.” She stared at her glass while saying, “He’s my father. I never liked him. I never liked Mamma.” She looked up at me. “I don’t like Gilbert.” Gilbert was her brother. “Don’t let that worry you. Lots of people don’t like their relatives. "

― Dashiell Hammett , The Thin Man