The origin of the story widely circulated in the Tianya, mop, Baidu Post Bar etc. famous Forum on a campus ghost story "good friends, back to back", about a close friend be together morning and night roommate campus horror story. The story was published, it attracted many campus thriller fans onlookers, ranked "campus ten ghost story" list in quite long period of time, become a net friend in the eyes of horror stories of the campus. The first "bed people" of the story takes place in a tourist city ancient static beauty, scenery is beautiful, but easy to have a strange sense of distance. Under the bed and "2 people" is the story moved to more easily create intimacy of the university campus, not only effectively enhance the film's sense, but also through the implantation and switching scene, memories and resonance caused by thousands of different people on campus life.