The film begins with the title Chorokbam filling the screen, which is amazing to see. This is the very moment at which the audience decides to trust this film without hesitation. In terms of how to fill and empty the square frame, the film is bold and skillful. Chorok, meaning green in English, is the color of fate in this movie. The problems of all the family members a hopeless father who works as a night guard, a mother who is completely exhausted with house works, a poor son who works for the disabled and their funeral ceremony are all dominated by the color, green. It is not bright or fancy but dark and scary in some sense. With attractive images and scenes, the film develops a series of worldly episodes of a family up to the level of poetic sentiment of blues and depression. (JUNG Hanseok)

　　为了探望患病的母亲（金成铃 饰），金书妍（朴信惠 饰）返回了家乡。自从父亲死后，金书妍和母亲之间的关系跌落到了冰点，她认为母亲应给对父亲的死负全责。金书妍不小心将手机落在了火车上，无奈之中，她只得暂时用家中的一台固定电话和外界联系。
　　一天，电话响了，在电话另一头的，是一位名叫吴英淑（全钟瑞 饰）的女孩。很快，金书妍就发现，这台电话似乎拥有穿越时间的特使能力，而吴英淑并非和自己生活在同一时代，而是十年前生活在这幢房子里的某个女孩。根据吴英淑的叙述，她被信奉邪教的母亲（李艾 饰）囚禁在家中，过着生不如死的日子，随着时间的推移，两个女孩之间逐渐建立起了友谊。而金书妍亦发现，就在不久之后，十年前的吴英淑将会葬身火海。