Sin City
In this book two crimes happen: one relating to sinning as in the religion aspect and the other part of Vegas the Striping a.k.a Sin City. The guys are assigned to the murdered/missing wife and the ladies are assigned to the stripper and as most people know Catherine used to be a stripper.
This book is an excellent read, very erotic (the stripper part) and it’s quite ironic. Well to see what happens read Sin City.