Su Yu, a modern female forensic doctor, accidentally traveled to the Zhou Dynasty and became the legitimate daughter of the Yongchang Hou Mansion. Facing a strange ancient world and complex family relationships, she relied on her professional forensic knowledge and keen insight to uncover the truth behind each of the bizarre murders.
While investigating the drowning case of the maid Qiu Ju, Su Yu discovered that the case was not simple. The brocade cloth in the deceased's hand and the strangulation marks on the neck all pointed to homicide. Her professional performance attracted the attention of Gu Jin, the minister of Dali Temple, and the two began to work together to solve the case. As the investigation deepened, Su Yu found that she was involved in a larger conspiracy, and her time travel seemed to be related to an old case.
In the process of solving the case, Su Yu not only had to face the threat of the murderer, but also the frame-up by her stepmother and concubine. With her wisdom and courage, she uncovered the truth step by step and cleared her biological mother's wrongdoing. At the same time, her relationship with Gu Jin also gradually warmed up. The two went from mutual suspicion at the beginning to trusting each other at the end, and finally spent the rest of their lives together.
