The Second Life of Nick Mason, by Steve Hamilton

Nick Mason makes a deal with the devil (incarcerated crime lord Darius Cole) to get out of prison early enough to see his daughter grow up.  He has his freedom, a posh apartment, and a fake job paying a big paycheck, but he has to do anything Cole requires of him, no questions asked.  Fast paced, cleverly written, interesting conflicted characters.  I'm looking forward to the next chapter in Nick's second life.