When "weird rules" swept Wuhai City, weird rules such as "Don't open the door at night" and "Don't answer children's knocks" became iron rules of survival, but former physics researcher Lin Yan scoffed. He used a spectrum analyzer to deconstruct "children's cries" into infrasound waves, and used magnetic field data to crack the "door opening taboo". He firmly believed that all rules are disguises for unknown physical phenomena.
Teaming up with nurse Zhao Xue, they fight against the "coders" who fanatically believe in rules, collect data in regulated areas such as hospitals and schools, and gradually uncover the source of the rules - the quantum effects of the underground element 119 ore. When everyone crouched under the rules, Lin Yan wielded the scientific blade: "The so-called strange stories are just formulas to be solved."