Fifteen-year-old Lian Zhu brought strawberry cake to Lin Musen's house, only to find him disposing of his stepfather's body.
Instead of running away or calling the police, he used an ashtray to hit the same wound on his forehead.
"Article 20 of the Criminal Law applies to self-defense." Lian Zhu licked the blood from the corner of his mouth and thrust the law textbook into Lin Musen's hand, "Now, we are accomplices."
On the visit day in the juvenile detention center, Lian Zhu included a photo of the death scene in "Symposium" with the words on the back: "Are we complete as we are now?"
On a rainy night, he sneaked into the infirmary and forged an allergy record in Lin Musen's medical record: "In the future, they will give you sedatives... And you will be as itchy as if you miss me."
When the police declared "self-defense established," Lian Zhu exchanged DNA samples—their blood would be fused forever in the evidence bag.
Seven years later, Lin Musen, associate professor of the Department of Philosophy, talked about Foucault's "Panopticon" on the podium. Lian Zhu, who was in the last row, was using his mobile phone to check the surveillance of the teacher's apartment.
"Congratulations, brother," he kissed the chalk dust on Professor Lin's shirt, "now it's my turn to monitor your life."
Concept: Two people staring at each other on the edge of the abyss, how to complete each other's redemption in a twisted way.