Cheng Haiyun runs an island B&B, but her interests have long been encroached upon by her husband Cen Jianguo, stepdaughter Cen Wanqiu, and son-in-law Tong Zhenbang. They embezzle business revenue, sell off the belongings of Cheng Haiyun's late husband, and even team up with external capital for malicious competition. Assisted by B&B manager Su Xiaoyun, Cheng Haiyun secretly gathers evidence and unites with neighbors to protect her rights. In the end, she exposes their fraudulent conduct, reclaims control of the B&B, and achieves the return of justice and family affection.