The best Kim Kang-woo’s movies of 2021

In 1990, at a secluded community center, the custodian murders all the guest lodgers and kills himself. Ever since, on every Old Year's Night, paranormal events begin to take place within the building. Eventually, the center is shut down and left abandoned for years. A renowned paranormal investigator who had lost his mother during an exorcism and three college students who heard about the rumor of the unexplained phenomena heads over to the building, resolved to uncover the buried secret.

Soo Jin, a woman suffering from post-traumatic memory loss, returns to her daily life with her husband after an accident. But her recovery takes an unexpected turn when she starts experiencing eerie visions: One day, she sees a vision of a child living in the same building being hit by a car. Shortly after almost risking her life to save the child, she has yet another chilling vision about a girl living on the 7th floor being harassed by a man, and does what she can to help the girl. She runs into her former boss at an art school, and learns that learns that her husband may not be telling the truth about everything. Meanwhile, detective Ki-sang finds Soo Jin’s husband on the surveillance footage of a crime scene and starts to investigate him. Soo Jin’s suspicion grows as she sees a vision of her husband killing a neighbor. While searching for the truth about her husband, she stumbles upon a wedding photo of her with a strange man other than her husband…

This film tells about the twists and turns of the lives of four lovers who must each overcome different fears and problems as they face the beginning of a new year. The four pairs consist of Ji Ho and Hyo Young, Jae Heon and Jin Ah, Yong Chan and Yao Lin, and Rae Hwan and Oh Wol.