When she comes home after a professional trip to China, Louise discovers that her street has been the site of a crime. No witnesses, everyone was asleep. Apparently Pierre, her husband, was working. He was at sea. Or so the story goes. The police carry out an investigation, as do the media. Until the night that Louise has a dream. She dreams that Pierre is speaking to her in her sleep. He talks to her for a long time, when he usually speaks so little.