Julien and Cécile have just moved into a new apartment. As he makes his way home one evening, Julien sees a strange young woman in a nightdress and bare feet. Anxious for her safety, he goes after her, but she disappears before he can catch up with her. The next day, Julien sees the same young woman, Gabrielle. She appears to be a completely different person, elegant, composed and happy. Not long after this, Julien again encounters Gabrielle as she was the first time he saw her and succeeds in following her back to her apartment. When he learns that Gabrielle suffers from sleepwalking, Julien decides to take an active interest in her welfare… —Films de France
Xavier Giannoli (born 7 March 1972) is a French film director and screenwriter. He has directed nine films since 1993. —Wikipedia