During the school holidays, two friends, Maya and Ita, along with their group, set out to climb Mount Gede in West Java. The climb began pleasantly, but midway through, Ita revealed she was menstruating, which is considered taboo in local beliefs. Concerned, Maya suggested they turn back, but they ultimately decided to continue. Soon after, Ita began experiencing unsettling mystical disturbances, which escalated as they climbed higher. Weakened by the haunting presence, Ita vomited and fainted, seemingly battling spirits trying to possess her. Tensions rose among the friends as they faced both internal