Nan, Tsai and five other young men and women took advantage of the holiday to go on vacation. They came to a small island villa located in a remote mountainous area, almost isolated from the world. The spacious and gorgeous house and the beautiful and primitive natural scenery made them overjoyed and enjoyed it. During this period, even Kangshu (played by Chinawut Indracusin), who always behaved a little weirdly, followed. Of course, Kangshu became the object of ridicule and jokes by the boys. There are extremely terrifying legends circulating in the local area, but for young people seeking excitement, this is the fun of their travel. They came to a ruin with a gloomy and strange atmosphere. Regardless of Kangshu's warnings and dissuasion, everyone walked straight in, and the boys locked Kangshu in a dark cave. The next day after having fun, Nan was worried about Kangshu's safety, but found that the boy who had had a strange experience since childhood had mysteriously disappeared, and the terrifying experience began...