After a disorienting night at a gathering, delivery worker Shouji awakens in a sealed box left on the railroad tracks. Shaken but determined, he escapes and heads straight to the home of the woman who invited him, posing as a courier to gain entry. Once inside, he swiftly confines her and transports her to a hidden location, using her as the first step in tracking down the others from that evening. The episode follows his calculated pursuit of answers and payback.