Detective Vivian is forced to face horrors from the past—not just seeking revenge, but embodying the most tempting of vices itself. Two years ago she sent the leader of the “Hellhounds” gang to prison. He was dangerous, cruel, and merciless, striking fear into the entire city and taking pleasure in her victims’ suffering. However, he managed to escape—and now he has become a personal threat to Vivian. His goal is her, and he won’t stop until he satisfies his desires. Zayn leaves her a message, admiring her detective skill, and warns that he will come for her with the most sinful intentions. The most seductive sin for him is lust.