 Bialès wonders about the meaning of the letters found carved on the wall after both murders, an O and a D, and concludes that they spell "do", leading him to believe that the killer is a musician.At the police headquarters, Odile is being interrogated in a scene parodying "Basic Instinct" (instead of smoking, Odile is eating sauerkraut).As Commissaire Bialès tells Odile of his suspicion that she planned the murders as a publicity stunt, another policeman comes in with a new piece of information