This was my first excursion into the work of novelist Robert B. Parker. I was familiar with him due to the "Spenser: For Hire" television program and the series of "Jesse Stone" TV movies, but this was the first time I had read one of his books.
I can say with honesty that this was an excellent story. The primary theme is one dealing with what is, or is not, sexually deviant. This book deals with issues such as "swinging," and how it impacts, not only the couples involved, but their children. It deals with voyeurism, and how far an individual may go. It also deals with how a person with multiple sexual partners can relate to each of them.
This is definitely a book for adults, and one I can openly recommend.