4.5 Stars. 
 This is the third book in a series and should probably be read after SAFE LIMITS (book two in the Kiss of Leather series). There is an overarching plot in this series that relates to unsafe Doms who use and abuse their subs. This is primarily to find "Master Tony" who organized the gang rape of Corey from SAFE LIMITS. 
 The main love story in this book is between Master Stone--a retired Dom and current PI--and Marshall, best friend of another sub. Stone had been accused in the death of a sub years ago, but was later proven to be innocent. He hasn't been in the lifestyle since, however. And now, as investigator for Corey's abuser, he's sure that history is repeating itself. Marshall's been a bad bad boy, and he's sure that no one will love/want him. He needs to clean out and learn to love himself, and Master Stone keeps a cool head when Marshall challenges him time and time again. 
 Their relationship is slow to build, but has good results. I liked how Stone encouraged Marshall to get stronger, and take charge of his life. He encourages Marshall, and gives him latitude to make mistakes--and make good choices, too. Because of their close association, Marshall and Corey become good friends. When the plot turns dark and deadly, it is Marshall who takes a lead and stands up for himself and Corey. Expect a thrilling chase and some touch-and-go moments. Also, expect some deep emotional bonds and thrilling sexytimes. 
 Again, I really love the considerate BDSM connections made in this series. All the partners feel good about themselves and their lovers. The pairs are all consensual and monogamous, with a bit of exhibitionism/public scening being the largest nod to kink.