Lin Yuetang has been married to her husband for seven years, but has never met her mother-in-law. Her husband never allows her to visit his family's home, yet he goes back every day to take care of his mother. Lin Yuetang initially thought her husband was being considerate, but an unexpected accident leads her to discover that a young woman is hidden in the family home, and her husband's excuse of caring for his mother is actually a lie!