Uncovering yet another fatality, the students find themselves gripped by an encroaching sense of fear, with death looming ever closer. The distinction between Mafia and non-Mafia individuals now appears inconsequential, intensifying their apprehension. As a footprint and a message left on a wall emerge, the list of potential targets is narrowed down to two, heightening the emotional tension just before another vote is about to take place.

With Na-hee exposing her identity, everyone discovers that So-mi's the Mafia, placing Na-hee in danger with her police role now known. Holding herself responsible for her friends' deaths, Na-hee devises a plan to unveil the Mafia even after her potential death. Although clues surface, they are too ambiguous to conclusively identify the Mafia. Meanwhile, the focus shifts to Mi-na as the next target in the voting process.