Best-selling crime author Yeo Joo is researching how to make a murder look like an accidental death. Her younger husband, Woo Sung, is a family man and divorce lawyer. He thinks he’s still a sexy, attractive partner, with a wonderful married life. But lately, Yeo Joo, who would rather be a widow than a divorcée, notices that lately some of his behavior is suspicious. Could Woo Sung actually be cheating on her? Could he possibly be enjoying a thrilling affair behind her back? Yeo Joo tells it straight: If he cheats, he dies!