I had high hopes for this book. It was written by George Axelrod, who wrote Will Success Spoil Rock Hunter? and Manchurian Candidate, two of my favorite movies. He also wrote Paris-When It Sizzles, an unfunny movie that seems to be on TCM every other week.
After a swift start this one fizzled and got bogged down in a plot that really didn't need to be so confusing. It's about a publisher who gets offered the final manuscript of a Hemingway-esque writer who recently committed suicide. The characters live in a world that revolves around a bizarre townhouse with two-way mirrors, secret recording devices, an elevator and lots of telephones. There's also a character who can duplicate any voice.
Like Chekhov said, if you introduce a character who has a gift for duplicating any voice in the first act you know he's going to do it by the end of the book.