Two women became widows on the same day, same hour. Ha Yoon Jeong becomes the matriarch of the family of her husband. Yoon Jeong supports them because she feels guilty about her husband's disappearance. Oh Dong Ja, Yoon Jeong's sister-in-law, has been living with Yoon Jeong's help as well. After the terrifying day of losing their husbands, the two women have been living as each other's good companions. However, now they become implacable enemies because of their children! What would happen if their daughters rival each other in love? What would happen if Yoon Jeong's husband, who everyone thought was dead, appears before them as the future father-in-law of Dong Ja's son? Could Yoon Jeong and Dong Ja's relation go back to the good old days?