Tae-pyeong, Yoon-chae and their friends embark on a journey to Bali, captivated by its mystical landscapes. Their local guide, Nova, explains the significance of the upcoming Nyepi Day, Bali's sacred Day of Silence, when all forms of eating, pleasure, travel and even lights must cease. While exploring the island, Tae-pyeong accidentally breaks a mysterious urn, triggering a series of strange and terrifying events that soon force them to violate the sacred rules of Nyepi Day against their will. As reality warps around them, Tae-pyeong begins to realize that a far more sinister force is at play, one that may not let them leave the island alive.