Diana, Wei, their daughter Qian Qian (played by) and their youngest son decided to pretend to be a family in order to get out of trouble. A group of four "fake families" arrived at the TV station and their money-saving life began. The participating families lived in a "money-saving house" specially designed by the TV station. The house is fully equipped, but everything is charged. Within seven days, everyone tried every means to save money, trying to take medicine everywhere, putting on makeup at the cosmetics counter and taking a bath in the public bathroom. Under hardships, some people secretly spend money, some people love children and are willing to sacrifice, some people are young and ignorant, some people stick to the rules of the game, and human nature is fully demonstrated.
In the game, Diana met the other side of Wei; The relationship between Xu Shaoxia (Eason Chan), the director of the TV station, and Qian Tuo has developed, but it has been used by the producers. In the end, the Wei family overcame all difficulties and became the winner of the "money family" game, but the host announced that they were deprived of their qualifications. ...