"I have my own suspicions about you, Sophie." Sophie Nelson knows her kinky interests are no more than fantasy, definitely not something that'll ever happen in the real world. So the sexual playground Black Light is the best place to turn. A safe place to play. Until Scott. Detective Scott Russo knows better than to get sexually involved with his partner. Mixing business with pleasure never ends well, but sometimes rules are meant to be broken. He can't avoid the temptation of giving Sophie exactly what she needs, even if that means a firm hand. While Sophie and Scott find themselves mired in a high-stakes investigation, their off-duty kinky explorations intensify. With danger at the door, and complications that threaten to tear them apart, can they survive the tug of war.