Wang Yu lives with her sister under the same roof, but she suffers from difficulties and insults from her sister. Her sister not only accused Wang Yu of trying to monopolize the family property, but also humiliated her in every possible way because Wang Yu was unable to have children. One day, a strange man broke into the house and revealed the secret of his sister's huge gambling debt. At the same time, Wang Yu's husband celebrated his third wedding anniversary by taking her to a high-end restaurant for dinner. However, her husband's abnormal behavior aroused Wang Yu's suspicion. It turns out that the husband and a mysterious woman actually have an unknown past...
