Kate Summers' career on the police force came to an implosive end when the mayor’s wife exposed her secret life as the Mistress of Pain. Kate lost not only her detective’s badge but something much more valuable: she lost her confidence as a Mistress of men. She now scrapes by as a private investigator, feeding off the misery of others. When the mayor and his wife ask her to investigate the murder of their daughter, Kate faces a difficult choice. To follow the leads, she must reenter the world that destroyed her career and go undercover as a submissive to a noted Dom. Kate swore she would never endure the submissive role again, yet Jake Davenport is the one dominant fearless enough to not only challenge her rules, but break them. There's only one problem. Jake’s complicated past raises too many questions, and as her investigation progresses, Jake might just be her number one suspect.

Kate Summers career on the police force might be over. Her role as Mistress of Pain might be in jeopardy. But as a Private Investigator, Kate is on the case, catching killers and following the evidence no matter where it leads. She’ll do whatever it takes to solve a murder, even surrender her place as the Mistress of Pain and assume the role of a submissive. She’s crazy to consider the idea, and while she swore she’d never endure the submissive role again, Jake Davenport is the one Dominant fearless enough to take on the Mistress of Pain. She’s only pretending, but Jake isn’t. He knows she’s the submissive he’s been looking for and he’s determined to show her why he’s the Dom she needs. Meanwhile, her investigation takes them on a treacherous path. With a killer on the loose, bodies are piling up, and the investigation turns on its head when the trail of evidence leads to Jake.