A family struggling with loss finds themselves at the mercy of an ancient demon trying to destroy them from the inside.。一位女歌手在目睹一位歌迷诡异自尽后，身边开始出现各种奇怪的微笑现象，其歌迷纷纷精神失常，开始疯狂地微笑，对女歌手穷追不舍。。
