This novel switches between the violent unwinding of Noah, a serial killer who seeks to teach a moral truth, and the unfurling romantic and personal life of Mary Paulson, a woman who realizes that she has lived her whole life and relationships simply going through the motions. After Mary is protected from her drunken boyfriend by a mysterious stranger on Halloween night, she pursues a friendship with her savior, which turns into more. As her life begins to fall into place, Mary starts to confront the issues she has pushed to the back of her mind and grow into the person she wants to be.
Meanwhile, in a series of slasher-style flashbacks, we learn more about a deadly suitor that Mary has no idea exists. With a dark and twisted ending, this story brings questions to mind that the reader would not normally face. What is the meaning of evil? Or rather, what would you do if you found out evil wanted you?