This it the first of the "In Death" series by J.D. Robb aka Nora Roberts. I have read some of the other books in this series out of order and felt it was time to go back and read the first. I'm glad I did.
This one contains the beginning of the relationship between Eve Dallas, tough and brilliant homicide detective and Roarke, former bad-guy turned good-guy, also brilliant, sexy and very wealthy.
The series is set in the not too distant future and I enjoy the author's imagining of how technology will have advanced. Nora/J.D. is a fabulous story teller and an expert at drawing out the mystery as well as heating up the romance.