Zhou Yanbai's tweezers held an abnormal paternity test sample. Under the cold light, the artificial traces of enzyme labeling were like cracks, revealing the secret of the wealthy Gu Hongye - his adopted son Gu Mingyu, whom he regarded as a treasure, had no blood relationship with him.
At the same time, nurse Qiao Yi'an was looking for a match for her seriously ill adoptive father, and accidentally ran into this genetic puzzle. Her birth certificate, her adoptive father's vague confession, and her genetic markers that mirror those of Gu Mingyu all point to the fire that burned the files at Renxin Hospital 25 years ago.
As the son of a former pediatrician, Zhou Yanbai dug out an encrypted notebook among his late mother's belongings. The baby bracelet number at the footer actually overlapped with Qiao Yi'an's birth information. During the investigation, the shadow of medical malpractice emerged: his mother's "medication error" and Qiao Yian's biological mother's "dyed childbirth", behind which were family transactions spanning two generations.
When scientific evidence tears apart the pretense of the two families, when she discovers that her life is just a replacement weighed by others, and when he realizes that his mother may be a player, this pursuit based on genetic evidence has already crossed the boundary of blood. In the dim light of the laboratory, they hold each other's broken life maps in their hands, trying to rebuild the genetic sequence of love and trust on the ruins of ethics.
