KANG Min, a TV network producer of "Mystery Theater," gets severely injured in a car accident near Spider Forest. Fortunately he is rescued at once and receives brain surgery. Upon recovering from a coma in a couple of weeks, he strongly insists on going back to Spider Forest and asks to make a call to the police, since he saw two dead bodies(Jong-pil and Soo-young) there. Though he tries to remember what happened in the forest, everything remains shrouded in mystery. His only clue is a blue key and the picture of his late wife…

(Source: http://www.koreanfilm.or.kr)