On the day of the divorce, Su Wantang got the pregnancy test form and her ex-husband Lu Jingchuan knelt down to ask for remarriage. She turned around with a sneer and married her ex-husband's brother-in-law Lu Tingshen. This revenge marriage revealed the hidden undercurrents of the Lu family - Old Mrs. Lu coveted her unborn child, Xiao Zhou Mingwei was threatening her with an old debt, and the seemingly indifferent Lu Tingshen actually prepared anti-fetal medicine for her late at night. When Lu Jingchuan discovered that his younger brother wanted to seize the family property and a paternity test was thrown on the conference table, Su Wantang realized that she was the only one who held her trump card in this bet.