Hye-jin's homecoming should have been a joyous occasion. She was especially happy to see her childhood friend again, the shy Eun-ju. However, when a secret is revealed, harsh words are exchanged. These words deeply affect Eun-ju and,in the next scene, we see her plummeting from a 30-story building. In a flashback provided by Seon-ae, we learn that the ghost of Eun-ju is hunting down all of Hye-jin's friends and killing them. Is this possible or is a more worldly force at work? What is this mysterious tape that everyone is asking about?

大学时期，宋倩（朴韩星 饰）与娜娜（辛芷蕾 饰）、羽菲（李昕岳 饰）、游峰（张皓然 饰）、宏瑞（杨帆 饰）、杨铮（孙绍龙 饰）几个人是非常要好的朋友。直到认识了新生小艾（章婷婷 饰）。漂亮的小艾让本来亲密无间的小团体产生了裂痕。特别是娜娜，处处针对她，只有宋倩努力维系着大家的关系。渐渐开始有不好的传言在学校漫延——小艾一直被视为邪恶的化身，所有与她接触的人都会有厄运。很快宏瑞发生意外摔伤腿，错过一场重要比赛。宋倩几个人在学校的屋顶阁楼玩起笔仙，结果笔仙也验证了小艾的不详，当晚小艾便跳楼自杀了。
大学毕业后，宋倩和她的同学们事业都发展很顺利，有的成了大明星，有的成为了企业精英，而直到娜娜从美国回来，怪事接二连三的发生，每个人都开始遇到危险，谜底一层层揭开，原来大学时代小艾的死，是另有原因……
2013年与2010年，都市中与校园里，一段尘封已久的大学往事，某个被记忆掩埋在心灵深处的名字再次因为笔仙的到来浮现脑海……

38岁的明星主播何志武（佟大为 饰）在家中精心打扮，准备迎接性感女友“临幸”。打开家门时，外面站着的却是一对陌生母子——来自“胡建”的20岁未婚妈妈唐慧茹（陈妍希 饰）带着5岁的儿子唐家栋（吕云骢 饰）上门认亲……面对从天而降的女儿和小萌孙，正值”芳龄“的何志武无法接受， 要求进行亲子鉴定！然而，结局却令人出乎意料……

2012 film directed by Ahn Byeong-ki

Soon after getting a new phone, a woman notices strange things starting to happen. When she investigates, she discovers that everyone who has had her phone number before her has died suddenly and mysteriously.

2014 film directed by Ahn Byeong-ki

A young woman's curiosity propels her to investigate a series of strange deaths in her neighborhood.

Yu-jin and her blind mother move to a small village from Seoul. On her first day at the new school, Yu-jin gets picked on by her classmates. Along with other victims of hatred, Yu-jin puts a curse on the four girls tormenting them through a Ouija Board. On her second day at school, one of the spellbound bursts into flames and dies just as she sits down where Yu-jin used the board. Next day, another victim burns to death, and now the school is enclosed by horror.