The situation that Kinsey Millhone finds herself in is completely different than other stories in the series. That's one of the things that keeps it interesting! The characters are well developed. I feel like I know exactly who they are by the end of the book. The situation keeps the tension high while you try to figure out how she can extricate herself from the trouble she's found herself in.
It begins with the death of a insurance adjuster that Kinsey is familiar with. Kinsey is asked by the insurance company to investigate some traffic accident claims as there seems to be a fraud ring involved. By the time it's all over, Kinsey has gotten herself thrown in jail to stick with her suspect and then, when released, smack dab in the middle of the fraud ring herself. She needs to get away from these guys and get back to her own life but it will be a dangerous situation to try to get away from.
If you've never read a Kinsey Millhone story, I wouldn't start with this one. You need to read a few others so you know who she is but if you've read some of the others, you'll enjoy this one!