After Zhang Ming's grandfather died, he returned from the city to keep vigil and discovered that the seven taboos recorded in a blue handwritten manuscript were being broken one by one. The people breaking them all seemed to point to the same thing: the secret at the bottom of a dry well fifty years ago had never truly closed its eyes. “Taboos are laws, ignorance is safety, and keeping secrets is mercy.” So Zhang Ming began investigating the secret of the torn-out final page of the manuscript, as well as the exact words his grandfather never finished saying on his deathbed, delving into the strange affairs of yin and yang.
