Ki-tae’s father has suspicions over his son’s death and searches for answers from Ki-tae’s teacher and friends. He finds Ki-tae’s friends who has transferred schools, but they doesn’t talk much. They seem to know something but does not tell what’s really on their mind. Three best friends, Ki-tae, Dong-yoon, and Hee-june: they thought their friendship would last forever. A few tiny cracks of distrust start to develop among these three best friends. Ki-tae and Hee-june are suddenly filled with misunderstanding and hate, and Ki-tae starts to use violence to Hee-june. When Dong-yoon finds out about Ki-tae’s abusive behavior toward Hee-june, he tries to stop Ki-tae but fails. Instead, what started out as little doubts, push these three boys into the point of no return.