Wang Bit-na

Arnold is a popular online erotic fiction writer famous for his ‘Sex with senior student’s girlfriend’ and ‘Friend’s older sister series’. However, he is writer Dong-myeong (Choi Jae-hwan) in reality, who dreams of winning the New Spring Literary Contest and works as tutor at a preparatory school to make a living. One day, his first love So-yeon (Wang Bit-na) appears in front of him. She claims the copyright of his novel, ‘Sex with senior student’s girlfriend’ and asks him to share the profit he has made from the novel so far.

10 years ago, Mi-ju lost her ambition to become a cellist when her entire family was brutally murdered. Due to the trauma, she now leads a quiet life as a teacher with her husband and children. However, dreadful events begin to occur.

A group of deadly assassins kidnap a hostage in the hope of getting a high ransom but when they manage to lose themselves in a forest and end up spending the night in a haunted house they manage to disrupt the plans of the ghosts to ascend to heaven. The assassins hatch a plan to solve the problem but in doing so reveal themselves to be incompetent, so the ghosts decide to give them some training themselves…