Night Has Come is a South Korean suspense thriller where high school students on a field trip are forced to play a deadly, real-life Mafia game, fighting for survival as they must identify hidden killers among them each night, leading to intense psychological warfare, betrayal, and bloodshed as the line between the game and reality blurs. With no escape, students must use their wits to survive and find the mastermind, encountering a ghostly presence and intense horror elements along the way.