Dissociated States

As an avid mystery reader, I am always looking for something different and I found it in this book. The main characters are a married couple who are both psychiatrists treating different personalities of the same man. The book is written in both present tense as well as through interesting flashbacks. The only criticism I have is that the marital stress between the main characters seems to distract from the creepiness of their client. Overall, it's a short - yet interesting read.