When the change of solar terms becomes a countdown to death, ancient wisdom transforms into a perfect crime script.
On a rainy night, the body of a success expert was found in a suburban wasteland with a strange posture. The scene was as clean as a mirror, with only a newly bloomed magnolia petal lying beside him. In the wake of thunder, a female gallery director died mysteriously in her own yard, accompanied by a cold metal insect.
The police found that both victims were related to the cultural circle, and the scene had a disturbing sense of ritual, which vaguely pointed to the next solar term. Detective Chen Mo is forced to race against time and break into a field that is completely unfamiliar to him - the twenty-four solar terms culture that has lasted for thousands of years. With the help of an old professor, he realizes that he is not facing an ordinary criminal, but a "tinker" who is deeply bewitched by ancient heresies. The murderer firmly believes that the world has deviated from the right track, and is determined to carry out an appalling "correction" based on the twisted secrets of solar terms.
From the cleansing of rain, to the awakening of the awakening of hibernation, to the balance of the vernal equinox... On every solar term day, a crime designed according to the characteristics of the solar terms must occur. Chen Mo must solve the puzzle created by the murderer based on ancient books and natural laws before the next solar term arrives, and stop this crazy ritual that uses life as a sacrifice.
However, they gradually discovered that the murderer's ultimate goal was far beyond imagination... He not only wanted to remove the "flaws", but also wanted to perform the final "purification" at the solstice and replace the world with a new one.
This is a race against ancient time, a game against the dark side of traditional culture. When modern criminal investigation logic meets paranoid classics