Plot introduction: after being sentenced to prison, a businessman realizes that his wife framed him and took away his company, property and son. There are three other people in the protagonist's cell: a young transsexual man, a mentally handicapped young man who eats everything, and an old man with a gentlemanly demeanor. One day, the protagonist found an old book in the wall next to his bed. It was the diary of a magician in the 1920s, which recorded all kinds of dark magic he had discovered. The four people in the cell inadvertently found that the magic in the book was extremely effective, so they decided to use the magic through the wall to escape from prison. After a failed attempt, the mentally retarded young man tore and ate the pages of the book and died in pain; the mother-loving transgender man painfully threw the book out of the cell window, and the protagonist and the old gentleman were dismayed. What should the three people do alive? The next day, after the prison administrator cleaned the body of the young man who was eating indiscriminately, a middle-aged man dressed like a magician entered the cell, took his DV and stayed in the bed of the dead young man. But the next day he disappeared again, the prison administrator.