Fire Flies - Marie Marini

Kristen is living her dream. Life has not always been easy but when she is promoted to Lieutenant at Deerfield Beach Fire Rescue she doesn't think it can get any better. Then she meets Darren. Every little girl believes in fairy tales and Kris thinks she might finally have met her Prince Charming.
Until a night of passion ends with Darren begging her to call 911. If Kris calls she could lose her job. She could lose everything she worked so hard for. It was an accident but would anyone believe her?
That night begins the fracture of her psyche and the emergence of a sexual sadist from the mind of a trusted professional. When Kristen's troubled past collides with her present she struggles to hold on to her dream. Can she care for Darren, do her job and stay one step ahead of the police when torture becomes a substitute for sex? How long can she hold it all together? What will happen when she no longer can?