After being treated as trash for three years, Chen Yan remained as silent as dust. Until the night his wife died of illness, he found a note filled with the baby's number in his old pocket. He was not the son-in-law of the Lin family, but the real daughter who had been secretly exchanged - and the respectable Lin family was raising another child with his blood and sweat. When Su Huilan forced him to kneel down and wash Lin Yanqiu's feet with water, and when Zhou Yuanshan's video tape automatically played late at night, Chen Yan finally dialed Zhao Wantang's number. What he wants is not to recognize his relatives, but to let the entire Lin family face the truth and be doomed.