One day actor-turned-detective Anthony Noir receives a letter from California, in which an old lady asks his help in the investigation of a long-ago case. On New Years Eve 1929 a famous Hollywood actress died in a car accident. The mysterious client implies it was in fact a deliberate murder. Anthony discovers all the possible details of the extraordinary assignment, even so he has to embark on an extensive journey to the past before he can unveil the secret of the movie star...