I read this book 2016-2018. It is possibly part of a series. It is about 2 girlfriends that live together (possibly Chicago) and work in a diner. The one girl is hiding her identity (possible MOB father) and the other girl goes missing after going to a club one night. The identity girl goes searching for her and meets the hot tattooed part owner of club who later turns out to be an undercover cop. His partner in the club is a childhood friend whose sister he used to date as teens. The sister was kidnapped by drug traffickers and possibly killed in her teens. The guy is still messed up by this and avoids relationships but falls for identity girl. Identity girls father turns out to be some kind of really bad guy who is part of the sex trafficking and drug ring and she has been hiding from him. The 2 club owners are deep undercover and participate in drug deals and I believe do drugs as well.
I have lost those who I have loved. I have bled for those I hate. I have lied to those who are honest. What am I?  You're a sinner dressed in white. You’re a ghost in the night. You're the demons that I fight. Who are you?  Both of us were sinners. She was hell-bent on revenge, and I was determined to let her have it. She was a beautiful sin that alone would be my damnatio I have lost those who I have loved. I have bled for those I hate. I have lied to those who are honest. What am I?  You're a sinner dressed in white. You’re a ghost in the night. You're the demons that I fight. Who are you?  Both of us were sinners. She was hell-bent on revenge, and I was determined to let her have it. She was a beautiful sin that alone would be my damnation. And for her, I was willing to dig my own grave. She took what little pride I had left and made me look like a fool. I lusted for a taste of her darkness, for it was the same color as mine. I envied the way she was able to say no, as if she really meant it. I will endure the wrath of having her no matter the cost of my greed. But I have always been a glutton for punishment without any propensity of sloth. She became my obsession and like any other drug, she took all the pain away but brought me to a new level of low. Too bad falling in love with her brought on a different kind of hell that I wasn’t sure we would live through. We were both running from a past that was going to tear apart out future. What I thought was going to be a beautiful beginning turned out to be a torturous end. ...more