A wealthy widow asked Philip Marlowe to investigate a disappearance of a rare coin from her late husband collection; this disappearance coincidentally happened at the same time as that of her daughter-in-law. There was no love lost between the two, so Marlowe's client hopes the PI will be able to dig up enough dirt on her son's wife to get a solid ground for a divorce. This seems to be a simple case and Marlowe was able to find the location of both lost coin and escaped person fairly soon, but he found himself being shadowed by an unknown person practically from the beginning, and then he started stumbling upon dead bodies.
I do not have much to say about the book other than what I have already said before about the series. The writing quality is good; the mystery is excellent (it is even better than the ones in the previous books). The plot, while being anything but straightforward makes the most complicated labyrinth look like a simple walk in a park.
This book and the previous ones made Philip Marlowe a sample after which all private investigators of noir literature were made by the writers who came after Raymond Chandler. It is very easy to give this book 5 stars without any reservation. Read the series if you have any interest in noir, but beware: the number of other authors who reached this lever of writing quality in genre since then can be counted with fingers on one hand with some fingers still left to spare.
This review is a copy/paste of my BookLikes one: http://gene.booklikes.com/post/913117/philip-marlowe-and-his-creator-raymond-chandler-never-fail-to-deliver