Seven years ago, Wang Ningning and her husband Song Zhao were introduced to get married. After their marriage, they bought a house in the town where Song Zhao's mother lived. Buying a house is a happy event, but this house has brought a huge crisis to this originally harmonious and happy family. This house was originally bought by Wang Ningning, but three years ago, when Zhao Yong and Bai Ling in Brother-in-law got married, her mother-in-law let them live in it because they didn't have a room, but Zhao Yong died in a car accident just nine months after they got married, and Bai Ling has lived in this house alone ever since. Sister-in-law Wang Ningning wanted to take the house back and sell it, but she was strongly opposed by sister-in-law Bai Ling. Both sisters-in-law thought the house was their own.