All five books of S.T. Abby's Mindf*ck series collected in one volume.
Ten years ago a group of men did something to the narrator and left her for dead. They should have checked. She has spent the decade since preparing, and she is now going through them one at a time, in order, with a patience that is the most frightening thing about her.
Then she meets Logan Bennett. He is brilliant, he is decent, he profiles serial offenders for the FBI, and he is very good at it. Falling for him is the one variable she did not plan for, and it puts the person best equipped to catch her inside her life.
Dark romance rather than a thriller with a romance in it: the revenge is graphic, the moral position is not softened, and the series is explicitly written for readers who want the protagonist to be the killer. Best read as one book, which is what this edition is.