When the men she dated begin dying, Madison Long must convince the police of her innocence and help them determine who has taken on the role of her guardian before he kills the only man she ever truly loved, Detective Nate Zuberi. Madison Long, a high school chemistry teacher, looks forward to a relaxing summer break. Instead, she suffers through a nightmare of threats, terror, and death. When she finds a man murdered she once dated, Detective Nate Zuberi is assigned to the case, and in the midst of chaos, attraction blossoms into love. Together, she and Nate search for her deadly guardian before he decides the only way to truly save her from what he considers a hurtful relationship is to kill her-and her policeman boyfriend as well.