Juwon, a university art professor, and Eugene, a gallery director, have been married for ten years. When Eugene begins to suspect Juwon’s behavior, she hires Minseo, a “seduction expert,” at a friend’s suggestion. “Please seduce my husband.” Approaching him through art, Minseo gradually develops feelings for Juwon, and the balance between the three begins to crumble. When Minseo’s old acquaintance Jung-tae appears, the temptation spirals toward an irreversible tragedy where love, distrust, and desire collide.