When she was 6 years old, Yang Yueyue watched her mother being killed through the keyhole. The murderer escaped, and she was taken back to the village by her grandmother, becoming the "unlucky child" that everyone avoided. For 24 years, she had only one thought: to find that person. When she finally put on the police uniform, when DNA technology opened up the silent evidence, and when an old photo was sent back from overseas - she discovered that the last name her mother wrote down in blood was the murderer's surname. In the early hours of that morning, the mother said nothing, did not call for help, and allowed the murderer to stab her, because she was afraid that the cry for help would attract her daughter, who would also be killed, and her mother was protecting her even before she died. This is the story of a girl who spent half her life understanding her mother's last love.
Concept: Mother's love and grandmother's nurturing support her to find the real murderer for her mother.