在这部迷失诱罪悬疑/惊悚片中,Yu-jin当知道妹妹Seung-jin返回家的时候，感到莫明的兴奋，因为Seung-jin将会带同丈夫Jin-ho一同回家。可是，最后只有Jin-ho回到Yu-jin的家。Jin-ho跟Yu-jin说Seung-jin自杀了。
Yu-jin听见妹妹自杀的消息后，感到非常哀伤。Jin-ho安慰着Yu-jin，并不惜诱惑她。Yu-jin的丈夫开始怀疑Jin-ho跟Yu-jin有染。
Yu-jin仍然不能相信妹妹已经死去。某天她从网上发现有一个男子使用和妹妹一样的电邮ID，于是试图约这个男子出来……
Yu-jin hears that her twin sister Seung-jin will be coming to town from the US. In the end only her brother-in-law arrives bearing horrible news of her sister's suicide. When her brother-in-law tries to seduce her, she feels a strange physical familiarity to him. Yu-jin meets a stranger online who calls himself art lover. He alludes to the suspicious circumstances surrounding Seung-jin's death and Yu-jin finds herself discovering her sister's past.
姐姐是不是存在过？。
