After signing a soul contract to become a permanent employee, contractor Gu Yi receives a badge branded P7-C-013. All 13 people in his department are dead, and only his left ear can hear the wails of the future. When the testing machine spits out a blood-written prophecy, “Don't go to Floor 404,” he steps into the elevator. There, rows of his own corpses are on display. It turns out the company's KPI is his remaining lifespan, and the company itself is chewing on the last beats of his heart.
