The human heart is the most secret abyss, and evil thoughts may arise in every corner.
The body of a male college student is discovered in the wilderness, and the cold corpse is brought out from the depths of the dormitory. The unbearable truth is that the friendship between classmates has turned into a hell of violence, where silent watching and cruelty are intertwined, completely devouring young lives.
A series of horrific unit murders have opened up the dark folds of human nature again and again. Perpetrators are hidden in daily life, crimes are born in the ordinary, and those ignored malice, silent indulgence, and out-of-control desires will eventually lead to irreparable tragedies.
Chasing the murderer on the edge of darkness, in the gap between good and evil, uncovering the truth and questioning people's hearts.
