Jiae, the wife of presidential candidate Hyun-woo, is pushed to the brink of death by a scheme from her husband's mistress, Chaewon. At that moment, the spirit of Ji-yeon, a legendary female crime boss who died in an accident, enters Jiae's body. No longer a submissive wife, Jiae begins to fight back, using Ji-yeon's ruthless instincts to uncover the conspiracy of her husband and his mistress. In a dangerous world where political power and crime intertwine, she plots a calculated and satisfying revenge against the two who drove her to death.