Lin Qiushi, an ordinary office worker, was told by a mysterious man in black that he would step into the door of death. After returning home, he accidentally discovered a strange black door. After being sucked in, he successively broke into an abandoned hospital, a scary campus, a cursed ancient house, a strange mountain village, and a deadly maze. He struggled to survive in worlds of death, cracking curses, searching for the truth, and fighting monsters. After experiencing countless terrifying levels, he grew up and finally discovered that it was all a test of life and death. After successfully clearing the level, the black door disappeared, and he returned to reality and gained a new life.
