Coming from rural Thailand, Mon moves to Bangkok to start university. On his first day in the big city, he meets Sow, a local musician, who shows him around. During a drunk night, Sow kisses Mon. Mon, confused, leaves. However, Mon quickly finds out Sow is also a freshman in his same faculty! Sow learns of Mon's love for basketball and decides to join the same team with him. In one of the matches, Mon gets injured and Sow starts taking care of him. Saint, Mon's high school teammate, confesses his love for him too. In the end, which team will Mon choose? Sow or Saint?

　　八个好友一同前往一座位于森林中的度假屋，为其中一位即将出国留学的朋友送行。这次旅行对他们来说是一个回顾高中时光的机会。然而，一连串令人不安的事件使得团体开始感到紧张，他们开始怀疑度假屋内某个地方隐藏着第九个人。随着情况越来越危险，他们试图解开谜团，却发现过去的黑暗秘密再次困扰着每个人。他们意识到，为了生存下去，必须尽快找出谁是幕后黑手，策划了这一系列致命而血腥的事件。