According to Korean folk tradition, the 21-day period after childbirth is known as “seire.” During this time, a newborn is vulnerable to bad luck, curses, and even evil spirits. Many superstitions surround these first three weeks, and new mother Hae-mi carefully follows every one of them. Her husband, Woo-jin, reluctantly plays along, but when he attends an ex-girlfriend’s funeral, he unwittingly opens the door to dark supernatural dangers.

Office worker Ranhee is a cinephile who once dreamt of being an independent film director. Several years ago, she had to put an end to her gloriously drafted independent feature film and went off the grid. She heads to a bar to meet her friend Seonjun who used to make films together. There she bumps into Xingxing, the starring actress of her flop. Xingxing still features in independent films and builds her career. She is with director Ki, the producer of her upcoming film. Xingxing suggests that the three sit together. Director Ki is insensitive and crude as if those features represent a true artist. When he begins to talk about Ranhee’s film, she can’t help but become very sensitive.

An old man has trouble connecting with his young grandson that recently moved in. But then there are a series of mysterious attacks on the elderly, and the grandpa-grandson duo decide to investigate together and bond over the experience.

Here are seven people who woke up from an old closed ward. They are tied to the bed and a small box falls for an autopsy bed when the number of clocks reaches 00:00. Why are they trapped here and what will happen to them?

Seonduk Arts High school sets a “moral distance rule”, forbidding physical contact between boys and girls. The school recommends Byeonchan and Seohyun, who have been meeting for 700 days, to transfer to another school because of this rule.