Sharon Chow receives a seemingly useless sewing box from Grandma Chow on her deathbed, and is forced to swear to guard it for one year. After being driven out of the house by Eldest Sister-in-law Caitlin, she discovers the sewing box can accelerate plant growth and generate heat on its own, drawing frantic attempts by Eldest Sister-in-law Caitlin to seize it. Facing cut water and power supplies and being framed for false charges, Sharon Chow holds fast to her oath in desperate circumstances, while Eldest Sister-in-law Caitlin, facing a crisis from her husband's Gambling Debt, becomes increasingly ruthless in her pursuit of the sewing box.
