High school student Gi Tae takes his own life. His father feels a heavy sense of guilt and confusion over his son's death. The father was largely absent from Gi Tae's life. He decides to search for answers to his son's death. Gi Tae's father finds a picture in his son's desk drawer. The picture consists of Gi Tae and high school friends Dong Yoon and Hee Joon.
Gi Tae's father is
