After the first chapter or so, the plot and concept of the book are gripping and incredibly interesting. The story is a mystery/crime and there are some pretty incredible plot twists that heighten the book to a whole new level- this is achieved through great detail and attention to accuracy.
The characters are caught incredibly well in this book, especially the frustrations and thoughts of the main character Christine. I like to think that Christine is so named as a parallel to The Phantom of the Opera as I can see some similarities but this is most likely just my imagination. The way Christine's life is written is brilliant- such an original writing style and plot that could so easily be overly confusing and difficult but is portrayed beautifully without any real struggles of difficulty.
This is a definite read for all ages, however please bare in mind some sexual references, and especially for those who love a mystery as this book really does keep you guessing till the very last pages. I have to say that although I have a copy that was released after the film I haven't seen the film or really intend to see it- if you read the book I think readers will understand my scepticism over how an earth it could be converted to film and still keep the magic and detail of the plot.