On a humid summer day, a preview of the director's new film is held at a small theater in crisis due to COVID-19. As the boss refuses to operate the air conditioner, the tired part-timer's patience begins to run out because of complaints from the heat-weary audience.

A high school wrestling team's fate is on the line due to their unpopularity and lack of budget. All the students have left the team except for two, who are from a broken family. The coach Sang-kyu lost his job and is making a living as a bus driver. However, he tries continuously to persuade the school principal to let the remaining team members compete in a match for one last time. At last, the principal gives them the chance to compete and the wrestling team only has two weeks to prepare for their final match.

Ja-yoon is a high school student who struggles with memory loss after she endured some unknown trauma during her childhood. While trying to uncover the truth, she is unwittingly dragged into a world of crime and finds herself on a journey that will awaken many secrets hidden deep within.