Ayan is the youngest warden in the prison. He is cold, gloomy and always speaks his mind.
Ah Chen is the most mysterious prisoner under his command. He is unruly and has a knife hidden in his smile.
Their daily life is the tense atmosphere in the interrogation room, and the breathing between the bars of the cell.
Ayan's duty is to watch over him, interrogate him, and pry open his mouth that never tells the truth.
Ah Chen's pleasure was to provoke him, get close to him, and melt his frozen bottom line inch by inch.
"Sir, can you even count how many times I've looked at other people?"
"If you look again, I'll replace your eyeballs with glass ones."
In this prison full of secrets, every "coincidence" could be fatal. When a new "suspicious target" appears, this dangerous game suddenly escalates——
This time, who falls into whose prison?
Purpose: to penetrate the opposition between position and identity, find the only truth among lies, and witness immortal sincerity in the abyss.