A Crimson Kiss by Anne Wright

A Crimson Kiss by Anne Wright She's a vigilante serial killer. He's an assassin. When she picks the wrong target, she puts herself on his radar. Rebecca has it all. She's a hotshot psychiatrist with a lawyer boyfriend. Until she catches her boyfriend with his pants down with his new paralegal assistant. Between him and the stress of seeing abused women at work, she needs a break. Under the guise of taking a sabbatical to write a book, she decides those abusers need a taste of their own medicine. Until she handles a target Alexander was after. Alexander becomes the guardian of his niece and nephew after a car accident kills his parents and sister. He needs money and he's a decent assassin. Until he finds out a woman beat him to his target. He's instantly attracted to the woman he believes took his kill, but now believes she might be his next target.