I really enjoyed this film. It was suspenseful and kept me glued to the screen. I did not care for the ending. I don't know why the female author killed herself. She had just been exonerated for the murder of her ghost writer when he appeared. Sure she was humiliated about news getting out that she even had a ghost writer. But she was a strong character and suicide seemed out of character for her. I had never heard of Gilbert Becaud, whose music played in several scenes. I fell in love with it. I went on Amazon.com and found there is a soundtrack to this film. However, I settled on a CD of Becaud's greatest hits. I guess he was big in the 1950s.