After an argument, she unexpectedly swaps souls with her harsh mother-in-law, Wang Xiulan. Armed with the mother-in-law's identity and secrets, she is not consumed by thoughts of revenge, but uses this special opportunity to see through the heavy problems in marriage and family. She adheres to her bottom line, relies on the law to clarify right and wrong, and ensures wrongdoings are treated fairly. Having endured this fantastical twist of events, Lin Wei reclaims herself, breaks free from the suffocating marriage, lets go of past entanglements, and rushes toward a brand-new, independent, and magnanimous life.