At the end of the Song Dynasty, the situation was turbulent. The female widower Qin Huayue was burdened with the blood feud of her family and struggled to investigate the case in the power whirlpool of the capital. As the daughter of Qin Ming, the former minister of Dali Temple, her parents died when she was young. Fortunately, she was rescued by a medical fairy and learned superb skills in treating widows. As she gradually gets closer to the truth, she discovers that the man behind the scenes is actually the uncle of Lin Zhiying, the minister of punishment. In a thrilling confrontation, Qin Huayue assassinated his enemy, and Lin Zhiying blocked the knife for his uncle, but his uncle killed both of them with a backhand knife.
However, the gears of fate did not stop turning. When she opened her eyes again, Qin Huayue was in a modern forensic examination room, holding a scalpel in her hand and a mutilated corpse in front of her. Before she could clear her thoughts, she reunited with Lin Zhiying, who had also traveled through time. At this time, Lin Zhiying was the core figure of the criminal police team.
The two were forced to join forces to adapt to a new life in this strange era while pursuing the truth across time and space. Can they solve the mystery of their past lives and find their own peace in the modern world?