Isabelle Bonnefoy, a famous sailor, is sailing with her son when she receives a distress signal. When they arrive, they discover a headless body floating in the water.Isabelle Bonnefoy, a famous sailor, is sailing with her son when she receives a distress signal. When they arrive, they discover a headless body floating in the water.Isabelle Bonnefoy, a famous sailor, is sailing with her son when she receives a distress signal. When they arrive, they discover a headless body floating in the water.