“They came looking for me. The secret from back then has already been uncovered by them. If we want to save him, we must kill the other one.”

A letter from the orphanage mother after years of silence pulls Green back into the nightmare of his childhood. Soon after, Green sees them again at her funeral—his childhood friends, Chen Zeyu and Tao Ye.

The three move into Tao Ye’s small Western-style house and begin to test each other’s sincerity. Who must be killed? Who is to be saved? And what role does Green play in all of this? Who is that boy—vague in memory, yet the one who once stirred Green’s heart?