Their Who Inside of Us (2020)

Pitch: A student gets absurd while working in a baseball club, and depicts the conflict that takes place in it. Electrical Technician: On the day of the written exam, Hyeon-woo finds Jong-beom cheating and informs the teacher of this fact but it didn't work. Spring: A wood factory in a deep mountain valley. Three young people live there. Chi-woong likes Hye-mi. Hye-mi wants to leave, and Seong-cheol follows Chi-woong like he's the king. Chi-woong tries to get in with Hye-mi by using Seong-cheol, but fails every time. Chi-woong and Seong-cheol's behavior is becoming more excessive, and Hye-mi's flower pot from the rooftop dropped, eventually killing someone. No one left that place after the incident.

Unfortunately the movie Their Who Inside of Us is not yet available on HBO Max.