As night falls, Director Park of an insurance company brings his employee Lee Se-young, who has a bad record, to the warehouse. He knows that Se-young has superpowers and can sense a person's life and death through information the size of a piece of paper. Director Park turns out strange and tortuous files from the warehouse and asks Se-young to investigate the truth. "The Cliff" Zhao Dongxu (played by Sheng Jun), who makes money by short-term trading, and his partner Sung Kyun (played by Lee Soo-hyuk) climb the mountain to relieve stress. Unexpectedly, the two fell off the cliff and were trapped in a desperate situation. At the moment of life and death, a chocolate bar became the last hope for survival, but it also triggered a series of tragedies. "Accident" Jiang Zhien, who failed the recruitment exam, drove to relax with two female companions, and ended up having a car accident on a dark mountain road. Fortunately, the three were not seriously injured, and they supported each other and walked towards the hotel. In this accident-prone area, the most terrifying experiences came one after another. "Escape" The useless intern teacher Gao Bingchen had a bad start, but he met a female student who was keen on spells. Under the girl's guidance, he took a mysterious elevator and entered another world...