The Yong family owned the wealthiest silk company in the country. Their abundance however brought along a series of wars between the heirs’ wives; childless lady Sabai, beautiful village girl Pikoon, and Xie a girl from the highland.

When Pikoon delivered a son and gave the family the first- born grandson, she gained her place as the first lady of the house. For this, Pikoon belittled Xie who fought back with a secret weapon from her hometown, the golden silkworm. Xie also found herself pregnant but with a girl. With jealousy, she exchanged her baby girl with a boy so that the son would also be the heir to that wealth. Sabai who appeared nice to others planned behind the ladies’ back and tried to kill their children to secure her own position as the first wife. Without warning, the poisonous silkworm and dark plans ladies plotted against one another led to their worst dreams.