天真的私人助理被卷入谋杀案

When a young woman infiltrates a family who may help her learn more about her estranged twin sister, she transforms from a nanny to a monster.

Father Kim and Deacon Choi try to exorcise the demon from Young-shin, but she remains unresponsive despite their efforts.

Bang Ga-Young works as an assistant manager in the general affairs department at a shoe company. Even though she is 34-years-old and single, she has never had a boyfriend in her life. One day, she receives a mysterious love letter.