For Washington in general and Georgetowners in particular the story of Albrecht Muth and Viola Drath is all too familiar. They lived up on Q Street across from the Exxon. They were seldom seen and not well known until she was found dead in the upstairs bathroom and he was charged and convicted of the murder. Last week, Christoph Waltz announced he is directing and starring in a film about the couple. A "Memo to Christoph Waltz" is the title of my New York Social Diary column today.