This is also a book where you will get the feels for each of the MC's, both are special in their own ways. To begin with, you will really feel it with Hunter, who watches as his best friend dies, and it seems like something dies within him too. He seems to hold everything inside, and nobody can get inside him to help him recover.
Now enter Payne, and their first meeting you will laugh at - Payne may be smaller than Hunter, but that doesn't mean anything, as Hunter finds outs the hard way!! Payne and Hunter are teamed together, and after an incident, Payne mentions to Hunter about using BDSM to help him with his PTSD. Strangely, Hunter feels comfortable with Payne and agrees.
This is where you will see the BDSM being used to try and make Hunter face his feelings of guilt, and everything else with it, but in a safe environment. Payne seems to be able to read Hunter with no problem, but always is ensuring his safety.
The two do actually grow closer, but Hunter is still under the assumption that he does not deserve to be loved, and also in some ways, that he is totally unloveable as he lived and his best friend died, and it was his fault - although nothing could be further from the truth.
I don't want to spoil things and say what happens in the story, but I will say once you start reading, you will just want to keep reading until you finish (I got engrossed reading while on a bus and almost missed my stop!!). You will be literally cheering Payne on, as he helps Hunter, and also I guess at times, you will want to shake Hunter and say look at what is in front of you, as he is oblivious to how close he and Payne have become. What will it take for him to see what is straight in front of his face?